Remus hmm’ed, "Yes – "ooh’. Now, I know you’re both young, but I’m not naive enough to think you two aren’t eventually going to start having sex," Sirius cringed again, and went to roll away in an attempt to bail on the conversation entirely, but Remus caught his wrist smoothly and pulled him back; he continued as if Sirius hadn’t just tried to run away, "Merlin knows there was enough of it going on in the dormitories when  we were at school, I can imagine it’s the same," this made Harry pause - perhaps  he was naive, because he could honestly say he’d never noticed anything like that when he’d been at school; Sirius groaned.