remus/peter.
Everyone thinks that about the person they fancy. You're aces and if Marlene didn't think so, she wouldn't be your friend. And living in your apartment.
Okay, but what if she doesn't and you ask her out in a respectful way that is entirely non-objectifying and she's so thrilled you finally made a move that she snogs you right then and there and then in another year or so we're all at your wedding?