A/N: Whoa... I know right? I thought this was done. But nah, it's not. Enjoy!
Elsa only managed to sigh, frustrated with the redhead. Like, why was she taking the past 5 minutes figuring out how to do electron configurations? In addition, it wasn't even that hard!
Anna grumbled, finally putting her hands in the air. "I can't do this! Idun was never that harsh on me, why do I have to work with you?!"
"Because I'm your friend—" Well, despite what happened… you know, that time. "—And I want you to pass your exams, you idiot. Plus, Idun is tutoring someone else."
"Like who?"
"Kristoff."
"Oh." There was a moment of silence. Was it awkward? Anna's smile faltered, faintly. It didn't take long for Elsa to take a step towards her from the back and leaned against her. "Look here. I'll help you. So, we're doing Calcium. How much electrons are in Calcium?"
Anna took her time, going through her periodic table. "Uh… 20?"
Oh thank god, she got that one. Elsa smiled. "Right. Now what do you do? You've already set up chart. How many arrows do you put on each orbitals for each sub-levels?"
"Two arrows, one going up and another going down… I think."
Yes! "That's right. Now do that until you get up to twenty."
At that point, Anna blanked out, holding the pen as if she was frozen. The blonde blinked, already expecting Anna to stutter out 'uhhh' for the entire time. How many minutes had passed? Anna only filled in the first orbital—which was fairly easy. The redhead may be slow, but wasn't COMPLETELY stupid. How she managed to not fail a grade was beyond Elsa and Idun's imagination.
Once again, Elsa sighed and immediately, Anna's head quickly fell against the desk, groaning like a dying cat.
"Oh now, what?"
"I don't knoooowwww…" She looked at the frustrated blonde, puppy eyes directed to her. How could Elsa resist? The blonde blush, heart pounding. This wasn't even the first time Anna looked at her this way!
"N-No, figure it out yourself."
"You're supposed to help!"
"This is a try-it-yourself problem. So do it."
Anna huffed, crossing her arms. "No."
"Anna, come on, I'm trying to help—" But as much as she wanted to try resisting those puppy eyes, shining with possibly unshed tears, god, she just couldn't! Elsa gulped, giving in much quicker than she'd though. Only… one occasion. She smiled, leaning in on the girl, slowly wrapping her arms around her toned abdomen. Elsa could already feel the rushing heat, running across Anna's cheeks.
"E-Elsa—"
"I'll give you a reward."
"A-A reward…"
"Mhm. A reward while you do that one problem. I'll give you another problem when… no, if you're finished with this one."
Of course, Anna couldn't resist that offer. She turned to her, eyes ogling on her lips. Biting her own, she lift her hand to grab Elsa's arm. Oh, but she was shaking. Whether it was out of the sweet, tempting, quiet tone of Elsa's or her desire to take her in bed and coat her skin with her roaming wet tongue. They looked into each other eyes. And god, they wanted each other so badly.
Elsa tilted her head. "So what's it going to be?"
Anna was now completely distracted with the hard bulge pressed against her back. Fuck, it was way too hot in here. Quickly, Anna nodded. There was no way she could possibly resist Elsa.
"S-Sure." And never had Anna stuttered so much in one day. How could this one person who'd been her friend forever, make her heart race, face flushed with crimson heat, body sweating like she'd been talking to her crush and had no idea what she was doing, herself. Even that Hans… oh Hans! He'd never made her felt that way before. Hans… well, after that date, Anna decided that he was just a jerk who had no idea how to treat a lady right.
Hm.
"Well then…" Elsa breathed. "Why don't we get started? I'd like you to sit on my lap, is that fine?"
Anna nodded, gulping one last time. Her throat felt dry. Getting up, she sat back down against Elsa's lap, gasping slightly as she felt a thrust of Elsa's hip against her.
"It's hot…" the blonde whispered, wrapping her arms around the girl. "Is it okay if I take off my clothes? I mean, we're girls, after all. You won't judge, right?"
"O-Of course not! I-I've taken mines off before…"
She grinned at the fidgeting girl, slowly taking off her shirt and shimmied off her shorts. "You're not hot?"
"V-Very."
"Then you might want to do it too. It's like, 80 degrees outside."
Nodding slightly, Anna struggled out of her shirt, because god, the blonde just couldn't keep her hands to herself!
Anna was only left in her underwear, not knowing what to do.
"Take those off too. Your bra's pretty, but… of course, it'll feel uncomfortable, right?"
Silently, she took that off too. Anna looked too relieved, sighing as she let her breasts free—but replaced by the smooth, cool hands of Elsa's, fingers fiddling with her pink, hard nipples. Anna yelped loudly, shivering. She was getting intense shivers. But it didn't take long until she threw her head back on Elsa's shoulder, her voice making music, filled with pleasure. Ah, she just loved those long fingers, playing her like an instrument. Elsa just couldn't resist that voice, kissing her neck as light as a feather.
"E-Elsa…"
"Do your work…"
Shakily, Anna struggled to grip onto her pen, staring at the problem. "I-I don't know how to do—"
"Two arrows, up and down, for each orbitals." Slowly Elsa's delightful fingers made its way down her stomach, playing with the curls of the girl. Anna seemed to mind, unable to concentrate. Oh, but this was part of Elsa's plan!
Gulping, Anna was able to try it out. Alright, one orbital filled it correctly.
"Keep going…" Elsa whispered, staring at the paper. And just as Anna was about to confidentially keep going, she gasped, hip thrusting against the pressure of Elsa's finger pressed on her clit.
"F-Fuck!" she moaned.
"You've filled in 1S and 2S… do the others, come on."
"I-I can't…"
"You can." Elsa started moving her fingers at a rapid pace, eyes on Anna as she rolled her eyes back. Anna was moaning loudly, continuously, as if she hadn't done this for a long time—as if it was the first time.
"G-God Elsa… Oh… Ah… Hgnn…"
"Shh, do your work."
"C-Can't concen… ah… trate…"
Smirking, Elsa was able to thrust her hip against Anna, earning an eager gasp. She whimpered like a pup.
"What is it?"
Anna couldn't say it, biting her lip as she continued to enjoy the fingers that were worshiping her clit with love. She only had to put her left hand behind her, cupping the bulge that was teasing her for the amount of time they'd been like this. Elsa resisted the urge to voice her pleasure, smiling innocently at the girl sitting on top of her.
"I-I need you…" she slurred between the moans. "P-Please…"
"Mm… well, why don't you turn around? I won't be moving, you know?"
Quickly, Anna turned, hands on her shoulders. And god, this was the first time, Anna had ever felt this much wetness pouring between her legs. "W-What about the—"
"I'll teach you slowly after. I'll give you a quiz too. And if you fail… hm… well, I'll have to think about what'll happen." She looked up to her teal eyes, darkened in want. Her hands propped on her hip and slowly, she forced the girl down. The tip of her throbbing member was pressed right against her sex. Anna didn't even hold herself back from chanting 'Elsa' over and over again. God, it felt THAT amazing.
And she lowered herself, completely swallowing up the hot bulge. "Fuck, Anna…" the blonde half murmured, half whined. Anna only smiled, staggering away with her breath. "It's so hot…"
"I… Ah… I-I know…"
Elsa grabbed her breasts, quickly surrounding her nipple with her lips. She suckled gently, getting harder with each one.
"God Elsa…"
"Move… Move, alright?"
And so, Anna began moving, swirling her hip slowly and as soon as she became comfortable enough, she was bouncing up and down at a constant pace. And so were her breasts.
Elsa loved the sight, chuckling and humming every now and then.
"E-Elsa… god, you feel so good… ah…" Anna looked at her, letting the blonde grab her braid, tugging her down into a kiss. Their tongue danced, swirling and exploring one another. Moans filled the air and nobody had the care to listen to whoever was banging on the door or wall, telling them to quiet down.
"G-God, Elsa—Fuck!" She tossed her head to the back, feeling the pressure against her clit again. And shit, it was just too overwhelming for the girl. Anna was already in tears, her muscles clenching. Oh she couldn't help it.
Elsa gritted her teeth, leaving scratches down the girl's back and chest. "S-Shit, I-I didn't bring a—"
Anna stared at her, breathing ragged. "P-Pull out then… Because I-I'm… Oh god, I'm about to—" She shut her eyes, screams turning silently as she tensed up, nails puncturing in Elsa's skin. Tears were pouring down her rosy cheek, but she continued riding down her high.
"Y-You good…?"
She nodded.
"God, I-I can't hold it any longer… Y-You gotta get off."
The redhead immediately got off, quickly wrapping her length with her hand, pumping it up and down as quickly as she could. Elsa, in an instant, tensed up, grabbing the girl's hair and white, sticky substances squirted out off her and onto Anna's fingers. Her moans grew louder by the second and until every single drop was out, she sat there, like a body made out of jelly.
"Anna…"
The redhead smiled, pressing her lips on her hand, tongue lapping up the remaining liquid. She leaned in, kissing the blonde's lip. "How was it?"
Laughing, Elsa kissed her once again. She couldn't get enough, was all. "Incredible."
"Well then, you wouldn't mind if we do it one more time right?"
"Mm… well, if we can take a little break, of course we can."
Anna grinned widely. "Best day ever."
They never finished that problem.