Summary: This is a Gravitation AU fic and it is a sequel to my story Specific Gravity. You should probably read Specific Gravity first for this story to completely make sense, but you can read it standalone if you want. Two years have passed and the relationship Yuki and Shuichi started in high school continues, even though Yuki is now away at college and Shuichi has embarked on a musical career. But problems are cropping up because of the physical distance between them, Shuichi's burgeoning musical career and Tohma's determination to win Yuki for himself.

Disclaimer: This is an original work of fiction, but the characters of Shuichi Shindou, Eiri Yuki, Hiroshi Nakano and Tohma Seguchi are borrowed from the Gravitation manga and TV series by the illustrious Maki Murakami.

Warning: This story contains strong sexual content of a homosexual nature. This chapter contains explicit language and sexual situations.

Author's Note: Shuichi sings several songs during this story and the lyrics are included for some of them. I wrote all the lyrics in this story, but please keep in mind I am a poet not a musician. There is no music to go with these songs, so please don't ask me!

-o-o-o-

Chapter 1: Long Distance Romance

Shuichi Shindou kept dancing from foot to foot, alternately clasping his hands in front of him and shaking them out nervously.

"Geez, Shuichi, could you please stand still?" Hiroshi Nakano, Shuichi's best friend, finally whispered. "You're driving me nuts. Do you have to pee or something?"

"No, I'm just really nervous!" Shuichi made an effort to stand still. "This is our first real concert! After all those dives we played in during high school, we're finally headlining on a real stage. There must be a thousand people out there!"

Hiro clasped Shuichi's shoulder and shook him gently. "You'll do fine. We've rehearsed our playlist a thousand times. You could sing these songs in your sleep." Hiro chuckled. "In fact, I bet you do!"

Shuichi grinned sheepishly. "Yeah, I know. But what if they don't like us?"

Hiro laughed softly. "There's no way that will happen." He leaned close and gazed directly into Shuichi's eyes. "I believe in you."

Shuichi stared back. "Hiro…"

"We're gonna be great."

A stagehand wearing headphones appeared beside them. "Ok, you Bad Luck guys. Get ready. As soon as the opening act clears the stage, we'll bring the lights down. When the lights come back up, you're on."

"Right!"

Shuichi clasped his hands together and closed his eyes. "I wish you could be here, Yuki," he whispered. "I hope you're thinking about me right now."

"Get your mind off Yuki and on the music!" Hiro muttered. "No distractions!"

"I'm focused!" Shuichi exclaimed. "I'll have them screaming for more!"

"Good, 'cause we're on!" Hiro grabbed Shuichi's hand and dashed onto the stage. They split up at center stage as Shuichi took his place behind his keyboard and Hiro picked up his guitar. He played a complicated riff as the lights came up.

Shuichi adjusted the mic in front of him and waved wildly at the cheering crowd. "Hello everybody! We're Bad Luck and we're gonna rock you!"

Shuichi played the opening chords of their first song and Hiro joined him on the second bar. The musical introduction was bright and upbeat, designed to get the crowd energized and into the music. An appreciative cheer rose up and then faded to rhythmic clapping as the audience got into the song. When the introduction was over, Shuichi leaned toward the mic and started to sing.

I wake up every morning and I start to dance!
My friends think I am lonely 'cause I'm all alone.
But how can I be lonely when you're in my heart?
I laugh because they don't understand.

The sun shines in on me and warms my soul.
I feel so close to you from far away.
Your arms embrace me when I look inside.
My heart is full of your love!

Yesterday you called me just to make me laugh.
I kept you on the phone until you fell asleep.
I dreamed of you all night until my sheets were wet.
But I laugh because no one understands.

The sun shines in on me and warms my soul.
I feel so close to you from far away.
Your arms embrace me when I look inside.
My heart is full of your love!

Shuichi swung into a raucous musical interlude and Hiro danced forward, his fingers flying over the guitar strings. The audience clapped in time with their arms above their heads, a general roar of approval issuing from every throat. Hiro spun toward Shuichi and winked. Then he leaped forward and skidded onto his knees, until he was just inches from the edge of the stage and leaned back, his long hair sweeping the floor as he kept playing without missing a beat. A loud cheer nearly drowned out the music and then quickly faded away as Shuichi leaned toward the mic again.

Whenever we're together I just hold you tight.
I feed upon your kisses and your gentle love.
My love for you sustains me when it's time to go.
But I laugh because we both understand.

The sun shines in on me and warms my soul.
I feel so close to you from far away.
Your arms embrace me when I look inside.
My heart is full of your love!

They finished out the piece with a long musical riff and a final flourish. The audience exploded into applause.

Hiro sidled close to Shuichi. 'It looks like we're off to a great start."

"Yeah!" Shuichi whispered back. "Let's keep 'em wound up!" He launched into the next song.

-o-o-o-o-o-

"I thought you were going to see your boyfriend this weekend," Tohma purred. He lounged on his stomach on Eiri's dorm room bed with his heels in the air and his chin resting on his hands.

"He has a concert," Eiri replied shortly. He was seated at his desk with his textbooks spread out in front of him.

"And you didn't go?" Tohma's voice brimmed with mock concern. "Doesn't he always invite you?"

"Yes." Eiri frowned at him. "But what do you care? And anyway, when else was I going to study for the English exam?"

"I understand," Tohma said with a sly smile. He sat up on his elbows. "But you've finished studying. Let's go out. I found this great new club I want to try."

Eiri sighed. "You're asking me out as a friend, right?"

"Absolutely."

"Really?" Eiri's eyes narrowed.

"Of course!" Tohma rolled off the bed. "Let's ask Takano and Matsuro to join us."

"Very well." Eiri rose and followed Tohma out the door. "By the way, I'm going to see Shuichi next weekend," he said casually.

"Oh?" Tohma lifted an eyebrow at him. "Before the calculus exam?"

"The calculus exam isn't for two weeks."

"On the original schedule." Tohma grinned. "But my connections tell me it's going to be moved up a week because there's a rumor that someone got hold of the exam and is planning to post it on the web next week."

"Why would anyone need to cheat on a calculus test?" Eiri snorted in disgust.

Tohma winked at him. "We can't all be as brilliant as you. But what I heard was that a whole new exam is being generated and they're giving it to us a week early to make sure no one has time to steal it."

"Shit!" Eiri chewed on his lip. "Well, I'm going to see Shuichi anyway. I promised him. Besides, I want to see him."

"If you think that's wise…" Tohma let the sentence trail off and he looped his arm through Eiri's. "I keep telling you, if sexual release is what you need, I would be more than happy to accommodate you. I would love to be closer to you, you know."

"Stop it, Tohma!" Eiri pulled his arm free. "I don't just see Shuichi for sex."

"But he certainly does seem to satisfy you. I suppose the same must be true for him. I can't imagine not being satisfied by a night with you. I wonder what he does when he needs you and you're not around."

"Quit trying to make trouble," Eiri growled. "Shuichi only wants me. If he really needs me, he calls me and jerks off on the phone."

"How romantic."

"Shut up."

Tohma chuckled softly to himself. "I'm not trying to make trouble, Eiri. You're my friend. I just don't want to see you made a fool of by some empty-headed little boy-toy."

"Shuichi's not empty-headed."

"He barely graduated from high school."

"But he did graduate! Can we please change the subject?"

"Whatever you want. Look, there's Takano and Matsuro. Hey guys!" Tohma waved and trotted ahead of Eiri to meet up with the other two.

Eiri followed more slowly, frowning to himself. Sometimes, being friends with Tohma seemed more trouble than it was worth. He was a lot of fun to be around, but when he got into these moods and started trying to insinuate himself between Eiri and Shuichi, it was extremely irritating. Emotional love might still be a strange feeling for Eiri, but he was sure that his feelings for Shuichi were genuine. Thinking about Shuichi sent a warm thread of desire trickling down into his loins. They hadn't been together for two weeks and Eiri missed him. And it would be another week before they got to see each other again.

"I'm not missing next weekend," Eiri muttered to himself. "I'll take my books with me and study afterward."

-o-o-o-o-o-

Eiri pulled up outside the rather tacky building where Shuichi and Hiro shared an apartment. They had moved in together right after graduating from high school so they could focus on their musical career. Eiri was not sure he was entirely comfortable with this arrangement. Shuichi and Hiro were very close. They'd been friends for a long time. There were still times when it seemed like Hiro knew things about Shuichi that Eiri did not and Eiri didn't like the way it made him feel. Jealousy was for losers. He stepped out of the car and slung his backpack over his shoulder.

"Yuki!"

Eiri looked up at the shout. Shuichi was leaning over the edge of their small balcony, waving furiously. Eiri waved back.

"Watch out you don't fall, idiot!"

Shuichi disappeared and Eiri braced himself as he entered the building and started up the stairs. He only made it up two of the three flights before Shuichi barreled into him, sending his backpack flying.

"Yuki! You're here! I'm so glad!" Shuichi flung his arms around Eiri's neck. "I missed you so much!"

"Yeah, I missed you too," Eiri said as he tried to disentangle himself from Shuichi so he could retrieve his backpack. He just barely managed to snag a shoulder strap before Shuichi grabbed his other hand and started pulling him up the next flight of stairs.

"I hope you didn't eat! I made lunch for you and everything. Hiro went out, so we have the place to ourselves all night." Shuichi grinned at him. "We can make as much noise as we want."

Eiri smiled back. "I hope you got take-out. Your cooking sucks."

"Humph!" Shuichi made a face at him. "I've been practicing. Hiro and I have to feed ourselves, you know, and we don't make enough to eat out all the time." At the next landing, Shuichi led the way toward the front of the building, where the door to his apartment stood wide open.

Eiri lifted an eyebrow at him. "That's not very safe. You guys have a lot of expensive equipment in here."

Shuichi laughed. "It was just for a minute." He dragged Eiri inside and closed the door. "Now it's just us." He flung his arms around Eiri's neck again and kissed him passionately. Eiri embraced him and responded to the kiss, his tongue stroking eagerly against Shuichi's. Urgent desire welled up in him and he was suddenly rock hard. The slight trace of hunger he'd felt when Shuichi mentioned lunch was instantly buried by the aching need radiating from his erection.

"We can eat later," he mumbled against Shuichi's lips. "I need to get you naked right now."

"I even made soup!" Shuichi protested, although the words came out severely muffled by Eiri's tongue.

"Later!" Eiri repeated. "Sex now, food later." He caught the bottom edge of Shuichi's t-shirt in both hands and yanked it off over his head. Shuichi's slender torso might not have attracted anyone else, but Eiri found it deliciously arousing. He leaned down and licked Shuichi's left nipple with the tip of his tongue.

Shuichi shivered. "Oh! Yuki, we should…" he moaned as Eiri rubbed the front of his cargo shorts. "The bedroom…" Shuichi gasped. "We should go… to…" His erection was hard inside his cargo shorts and Eiri gripped it through the cloth.

"Why?" Eiri murmured. He licked Shuichi's nipple again. The little bud at the center had already popped out and he teased it with his tongue. "You said Hiro wouldn't be back until morning."

"Well… yes…" Shuichi panted. "But…"

Eiri straightened up with a smile. "All right. We'll go to the bedroom. I want to tie you up anyway."

Shuichi's eyes went round. "But Yuki…!"

Eiri slipped an arm around his waist and pulled Shuichi toward his bedroom. The apartment had two bedrooms and one living room that also served as kitchen, dining room and music room. There was a small bathroom between the bedrooms. The bedrooms were tiny; just big enough for a futon and a small dresser for clothes. But the small size suited Eiri. During one of his first visits, he'd installed two decorative lamp holders in the wall just above the futon. He had told Shuichi they were reading lamps and they were. However, each holder had a small ring at the bottom which was just the right size for the slender, velvet covered cords he had also brought with him. Now he pushed Shuichi gently down onto the futon and tied his wrists with the cords, restraining him.

"Yuki!" Shuichi squirmed. "You know how much this turns me on." He struggled, tugging against the cords.

"Of course I know." Eiri smiled. "That's why I like doing it. Now, since there's nothing you can do to stop me, I think I'll just enjoy myself."

"That's not fair!" Shuichi struggled some more. "I haven't seen you for weeks and you won't even let me touch you?"

"You can touch me later." Eiri traced a circle around Shuichi's nipple. "I want to touch and taste everything. I've been studying very hard at college. I want to use my senses and let my brain take a rest for a while." He leaned over. "I think I'll start here." And he slowly stroked his tongue across the nipple he'd been playing with.

Shuichi groaned. "Please! I want to do stuff too!"

"Oh, you'll get to do stuff," Eiri whispered. "You'll get to come over and over again. And you'll get to make me come over and over again. You're going to love it." He closed his lips around Shuichi's nipple and sucked it. Shuichi's helpless moan of pleasure delighted him. Having sex with Shuichi was always good, but periodically tying him up made it simply exquisite. Shuichi became uncontrollably responsive when he was helpless and Yuki loved playing with his body. He licked and sucked Shuichi's nipples until Shuichi was writhing with pleasure. Then he slowly licked his way down the center of Shuichi's chest to his abdomen. Shuichi's erection was straining against his cargo shorts. "Shuichi," Eiri said, "if I didn't know any better, I'd say you're not wearing any underwear."

"Um…" Shuichi gasped.

Eiri slipped his hand inside the waistband of Shuichi's shorts. "You're not," he announced. Shuichi's hips twitched as Eiri's fingers toyed with the tip of his erection. "And you're leaking."

"Oh god!" Shuichi groaned.

Eiri undid Shuichi's shorts and pushed them down over his hips. He stroked one finger down the length of Shuichi's erection. "What do you suppose I should do with this, eh?"

Shuichi arched his back, panting.

"That's what I thought." Eiri leaned over and slid his mouth onto Shuichi's erection. He didn't have to work it long; Shuichi came almost immediately.

"Ah! Eiri!" Shuichi cried out. "I need more!"

"You're going to get more," Eiri assured him. He wiped his lips with his fingertips. "But first, I haven't tasted all of you." He pulled Shuichi's shorts the rest of the way down and removed them. "Shall I start at the top or the bottom?"

"Please!" Shuichi wiggled his hips and spread his legs. "Don't torment me! You know what I want!"

"Yes, yes, I want that too." Eiri stroked a finger across Shuichi's opening, but he didn't penetrate him. Shuichi groaned. "But you're not begging hard enough yet. I think I need to get you really excited first."

"I am excited!" Shuichi arched his back again, writhing suggestively. "You can fuck me as many times as you want! Please!"

Eiri smiled. "I like that. Utter submissiveness is good, but I'm striving for abject servitude. I think I'll start at the bottom. I like your toes."

"Argh!"

Shuichi writhed and moaned helplessly as Eiri deliberately sucked on each and every one of his toes. Shuichi responded erotically to toe-sucking even when he wasn't tied up. It was especially erotic for him when he was. His ankles were also delightfully sensitive and Eiri licked those too. He worked his way slowly up Shuichi's legs, but he avoided entering his erogenous zone. Instead, he switched to Shuichi's fingers and wrists and started working his way down Shuichi's arms. Then he turned Shuichi onto his side so he could lick the back of his neck and wander slowly down his spine, with pleasurable side excursions under his arms and along the edges of his rib cage.

"Yuki!" Shuichi moaned. "I need you to fuck me! I'm so hot! You're driving me crazy!"

"That's rather pitiful begging," Eiri admonished him. "I need to hear something much more persuasive if you really want to feel my cock in your ass."

"Please!" Shuichi cried. He rolled onto his back and spread his legs wide apart, twisting his heels into the futon as he writhed. "You're the only one who can satisfy me! I need you!"

"That's a little better." Eiri got between his legs. "Maybe a little more stimulation will do the trick." He stretched out, pushed Shuichi's legs farther apart and began to lick him intimately.

Shuichi gasped aloud. "Yuki!"

"Hm?" Eiri kept licking.

"If you keep doing that, I'll come!"

"Really?" Eiri didn't stop.

Shuichi wriggled and writhed and finally arched up with a gasp of pleasure, cum spurting across his abdomen.

"You weren't kidding." Eiri sat up. "Maybe you really are ready." He started to undress and Shuichi got hard again as he watched him. He started panting through his open mouth.

"Hurry up, Yuki," Shuichi panted. "I can't stand it anymore. I wanna get fucked!" He tugged against his bonds. "Do it really hard!"

Eiri chuckled as he finished undressing. "I don't know if that's properly subservient, but it's definitely enticing." He knelt down between Shuichi's legs and wet his fingers in his mouth. "Now try not to come until after I get my cock in, ok?" He inserted his fingers into Shuichi slowly.

Shuichi gasped. "Yes! Give me more, I want more!"

Eiri worked his fingers in him until Shuichi's opening felt nice and relaxed. Despite Shuichi's desperate urgency, Eiri was mindful of the fact that they had not had sex in three weeks. Shuichi had tightened up a little. He took his fingers out and shifted forward. "Now that I've had my fun, it's time to get serious," he said with a smile. He lifted Shuichi by the hips. "Ready?"

"Yes!"

Eiri thrust into him and Shuichi rolled his head back with a cry of pleasure. Eiri closed his eyes with a gasp. Shuichi always felt so good. Every time Eiri took him, the initial shock of penetration always sent a wave of delirious pleasure through him. Sometimes it was so strong it almost made him come. He sat frozen for an instant, waiting for the near orgasm to pass before he started moving, driving himself into Shuichi with hard, deep thrusts. Pleasure built up in him as he moved, making him harder and his need more urgent. He pounded his hips against Shuichi's bottom, desperate to get every last inch of his throbbing erection all the way into the warm, tightness of Shuichi's body. Shuichi's cries of joy built rapidly toward climax and he came long before Eiri was finished, but Eiri didn't mind. In fact, it pleased him. He enjoyed their lovemaking even more when he managed to climax Shuichi multiple times during the same sex act. He kept ramming himself into Shuichi until arousal exploded into orgasm. He went rigid, gasping and shuddering helplessly as his erection emptied itself. When it finished, he sank down onto his heels with a sigh.

He rubbed his palms along Shuichi's thighs. "Did you come again?"

"Uh huh." Shuichi nodded weakly. "That was so good, Yuki." His face was flushed and he panted in long, deep breaths. "Will you untie me now? I want to hold you."

"I thought I got to fuck you as many times as I want?"

Shuichi regarded him with enormous dark eyes. "But I want to kiss you."

Eiri smiled. "Very well. I suppose I can indulge you this one time." He crawled to the head of the bed and untied Shuichi's wrists. "But I reserve the right to re-enslave you at any time."

"Ok." Shuichi smiled and cupped Eiri's face in his hands. "But I want lots of kisses first." He pulled Eiri's face down to his and kissed him warmly on the mouth.

Eiri stretched out beside Shuichi and embraced him. "I did miss you, you know."

"You did?" Delight lit up Shuichi's face. "I know you must be so busy with classes and studying, sometimes I wonder if you even have time to think about me."

"I think about you all the time, Shuichi," Eiri said seriously.

Shuichi blinked at him. "Really? Because I think about you all the time too."

"Even when you're in the middle of a concert singing?"

"Well, maybe not then," Shuichi laughed. "But all the rest of the time." He cuddled against Eiri's side. "I wish you could come to one of my concerts. I'd really like it if you could see me perform."

"Your performance right here is the one I like the best."

"Oh Yuki!" Shuichi punched his side gently. "You can have that any time. Watching me sing is different."

Eiri smoothed Shuichi's hair back and kissed his forehead, but he didn't say anything. Their relationship had started before Shuichi had begun to enjoy professional success. Now that he was starting to succeed at his musical career, it sometimes made Eiri feel superfluous. Shuichi didn't need him in order to be a successful musician. A twinge of uncertainty touched him.

Almost as if he was aware of Eiri's train of thought, Shuichi murmured, "I'll always want you to watch me, Yuki, no matter how famous I become."

For some reason, this made Eiri feel even more uncertain, not less. "Tell me you love me, Shuichi."

"I love you, Yuki."

Yuki rolled on top of him and pushed his legs apart. As he penetrated Shuichi and felt the wave of pleasure wash over him, he embraced Shuichi tightly. I don't want to lose this feeling. I really do need him.