"Really Sirius you should tone the charm down if you don't want Severus's comment to become true." ~ Suggested jokingly by Remus Lupin, with wiggling eyebrows.
Concerning Kissing Sirius's Ass/The Boyfriend Comment:
"I would never kiss Sirius's ass, since I have no idea where it's been. However, I appreciate the boyfriend compliment, but I'm not really interested in a relationship right now Severus. Sorry if that disappoints you." ~Reply by Remus.