Welcome to the Club

Sasuke meets Naruto at a club and feels the need to protect him from the hungry eyes of Sai. He doesn't plan on even seeing the blonde after that, but somehow he is convinced to go to the club yet again and, as it is every Friday night, Naruto is there. Soon, it gets to the point where the Uchiha can't get him out of his mind, but he still doesn't know what to do about Sai...