"Are you coming, Prongs?"

"No, I'm going to the library."

"To the wherebrary? Are you serious?"

"I'm not Sirius, you are."

"Ha, ha, that's funny", Sirius looked at James and made a rude gesture showing how angry he was. The two friends were inseparable and such thing as a 'library' (Sirius couldn't even think that James knew such words) wasn't the thing that would part their ways.

"I have to write an essay for Slughorn, I thought you remembered."

"Well I don't remember every little thing you have to do, you see, I have my own things to do", Sirius replied staring at the pretty blonde girl passing by his chair and disappearing behind the back of the Fat Lady's portrait.

James smirked and raised his eyebrow. "Yeah, sure you do have those little things called… what are they called again?" he mocked deep concentration. "Oh! Right! Hormones!" He laughed as Sirius made the same gesture again. "Flipping me off won't change you much." He took his legs off the table and stood up. "Alright, now I'll go watch Lil..." he stopped as Sirius raised both his eyebrows very high. "Lil…ac-covered book I saw…" he nodded eagerly. "You know, the one about the Draught of Sleeping Death." Sirius narrowed his eyes. "What?"

"Nothing. Just go." Sirius watched the blonde girl climb back into the Gryffindor common room right after James climbed out and smiled at her. Though he couldn't see it, he was sure she blushed furiously.

Lily Evans was sitting in a library studying for the upcoming exams. She knew she was perfectly ready, but the last May days of her sixth year at Hogwarts couldn't be more exhausting. She was reading through each and every book she could lay her eyes on and scanned through as if she was a metal detector. She was just about to open another volume of the "History of British Warlocks and Events" when she noticed a small flash just behind the shelf she was looking at a few moments before. She narrowed her eyes angrily and opened the book at the contents page, but the flash appeared again. She hated when he did that. He thought she didn't notice him spying at her for the whole year when she thought she was alone in the library late at evenings, but his glasses were reflecting the sunset every now and then making her notice him without even trying to.

The red flash appeared again. Merlin, she hated those jocks who thought they could get every girl at school just because they play Quidditch and have those muscles every girl falls for. And he was one of them, self-loving and annoying as a person could be.

Flash…

"Potter, will you come out already?"

A set of messy jet black hair appeared from behind the bookshelf and the small voice said. "How did you know it was me?"

Lily put the book away. "One more day and you'll burn a hole inside my head with your glasses."

A seventeen-year-old boy in a white shirt and grey pants appeared after his hair. "What makes you think I was trying to burn it in your head?" He smirked as Lily blushed and buttoned the upper part of her shirt she undid because of the hot summer evening. He walked up to the table at which she was sitting. "No, seriously, your hair would burn a hole in my head instead." Lily smoothed her red hair and looked at her books.

"What do you want?" she asked hoping that answer wouldn't be…

"You know what I want", he breathed into her ear making her shiver as she unwillingly parted her lips… the hot air suddenly became hotter and she was founding it hard to breathe. She turned her head to her left to find him kneeling beside her chair and leaning so close she could feel his breath on her face. His right arm was on the back of the chair gently wrapped around her shoulders and his left arm was slowly moving the books aside. He stood up and sat down onto the table almost in front of her and crossed his legs. Yes, she did know what he wanted and she was ready to give it to him right there and then, on the study table at the library where students were studying and learning. She was sure she could learn some things from him, yet she was hesitating… giving in to him would mean giving in to the system. His muscles moved playfully as he crossed his arms on his well-formed chest. Her eyes roamed his body.

He was short and skinny in their first years at Hogwarts, but as the Quidditch went on, his body was becoming more masculine, his arms were flexing even when he was simply writing. All girls fainted when he gave them one of his trademark smirks and flashed looks from behind his glasses that made them melt. He was tall and sexy now, with his messy black hair and beautiful brown eyes… she was the only girl that wouldn't give in, she was refusing him over and over again, as if she was one of many girls who he asked out. She heard countless stories about girls who gave themselves to the warm embrace of the famous Hogwarts jock James Potter, mostly invented by the crony Black, but she knew for sure that it wasn't just a coincidence that out of all girls in the school he picked the bookworm Evans as his next victim.

Her chest rose and fell as her breathing became erratic and she couldn't help but notice that James was looking down her cleavage again. She leaned back in her chair to block his access to her curvy area since he was towering above her and had a great view from his position. She moved away in her chair a little.

"I thought you quit the thing", she folded her arms and backed away even more as she noticed him licking her lips.

"No Evans, I won't quit it, believe me", he replied as he jumped off the table and started to walk towards the exit of the library. "See you." He waved as he walked out leaving Lily angry and frustrated. She didn't know what had just happened, but she had a feeling that it wasn't as simple as it seemed.

James walked into the dormitory and sat down on his four-poster bed noticing sleeping Sirius and lip-stick on his twisted tie which he obviously forgot to take off as well as his other clothes and boots.

He sighed taking his own clothes off and getting into his bed. "Believe me, Evans, I won't quit until the bet is over."