From a girl I’m attracted to:

“I miss sex”

There’s no real way to respond to that.  I mean, you can always go (like I did) with the “yeah, me too” route.  But it’s hard to not say “well then, why not do something about it”.  I’m much more of a gentleman than that.  Evne if she told me to come over, I’d be hard pressed to do anything more than cuddle with her.  Not for any real reason but respect for her.  This is one of those situations where I could get some ass if I was an asshole.  But I can’t be an asshole, so I guess I get no ass.  All for the better this way anyway.