Remus: Er… Sirius can’t see this, can he?
James: Nah, I locked him in the loo.
Remus: Oh, good. Well then, I guess we can… er…
James: Merlin, Moony, you’re cute when you blush!
Remus: *blushing harder* Sod off!
James: *grinning* Not my fault you’re so lovable, mate. Can’t help myself from having a crush on you, can I?
Remus: Yes well… I suppose it’s alright, isn’t it? As long as we don’t let Sirius know about it.
James: Yeah no, I don’t fancy getting our hair hexed off.
Remus: It might be an improvement for you.
James: Stuff it, Moony!
Remus: *grinning slyly* If you insist. At least until Sirius hexes his way out of the loo.
Étiquette : but seriously

extract from Be My Time Bomb Lover on AO3