A/N: Hello everyone. Here is a new story. However, the plot is not entirely mine. The idea came when I was reading 'The Bet' by akatsuki-chan. The initial chapters would be highly inspired by that story. However, the story will take different turn after some time. This is my first slash story. So, I apologise , in advance, if I somehow manage to hurt your feelings. Also give me ideas and critics since I have no idea about slash except from the stories I have read here on Fanfiction. Hope you like it.

It was a bright sunny day. The type of day you don't want to spend inside. Even if your favourite time-pass is reading.

That's why Remus Lupin, a thick tome in his hand, was heading towards the lake. To enjoy the sunshine as well as the book.

There were many students who agreed with Remus' idea and were currently enjoying their weekend in the grounds playing, chatting, strolling or arguing.

That was what our dear Marauders were doing at present – arguing. It was mainly an argument between Sirius Black and James Potter. Peter Pettigrew was merely an audience to the scene unfolding before him.

The argument wasn't supposed to be a heated one since it was on such a petty issue but their egos, bigger than they could handle, had led it to its current state – heated.

"I have had more girl-friends in Hogwarts, James," Sirius said, puffing his chest. Peter rolled his eyes.

James glared, "You forgot, Sirius, the count yesterday was in my favour."

'Oh yes, the count', Peter mused, 'who could imagine Marauders keep count, and not any – a written count, of the girl friends each of them had had'.

No prize for guessing that Peter's count was the lowest, whereas Sirius' and James' were reaching astronomical heights.

Peter wanted to mention to James that his escapades with girls was probably the reason Lily never agreed for a date with him, but seeing the current situation, he decided against it. He definitely wanted his head on his body to pass OWLs.

"I added my fan-following as well as the girls who would date me in future, in advance," Sirius was saying. "Since I can get anyone to bed with me. It's just the shortage of time that prevents me from achieving the result."

James snorted. "Wanna have a bet on that?"

Now, Peter got interested. A bet. Obviously on a very stupid issue but nonetheless interesting.

Sirius raised an eyebrow and nodded with a superior smile.

"What kind of bet?" Sirius asked.

"Well," James said, thinking, "You get to bed someone whom we would chose." Peter raised his eyes at James for including him, but James ignored him. "Within a – a … month. Yes, a month."

"Oh," Sirius said, waving airily, "A month is lot enough time. It will be over before that. What's on stake?"

"Peter will decide that," James said quickly.

Peter sighed. He had to be dragged into this. The gits. "25 galleons."

James' and Sirius' eyes sparkled with glee and excitement. "You are on," Sirius said.

"Alright," James said, "We need to choose someone. H.m.m.m. … give me some ideas Peter."

"How about Lily?" Peter suggested.

Sirius laughed out aloud before saying, "Mate, I don't think James, here, will appreciate that. Would you Jamsie?"

James shot Peter and Sirius an annoyed look. "How about Barbara?"

"Ewww," Sirius said, making a face, "That Ravenclaw with disgusting pimples all over her face. At least give me someone to look forward to shag with."

"Alright," James said, "Alright." He glanced around the ground looking for possible candidates.

Peter found himself doing the same.

Their eyes rested on one person, together. They looked at each other, eyes glinting with evil, before they turned back to Sirius. Who better than a person as anti-social, as quiet, as unaffected by Sirius' charm and as loony as this one. Oh great.

"We have found a perfect candidate," Peter said.

"Remus John Lupin," James announced.

Remus John Lupin was their room mate for the last five years and yet they hardly knew him. Not only was he excessively quiet but also nerdy. Nowhere could he be found without a book. It was even a surprise James knew his middle name.

"W-what?" Sirius gasped. "Are you crazy? I was talking about girls."

Peter shook his head. "You mentioned anyone. It was your mistake you were not specific."

James clapped Peter on his back. "Scared, Sirius?"

"Bet it is," Sirius snarled, before stomping to the castle, leaving behind laughing Peter and James.