Actually, the last time I roleplayed such an interaction I got seriously creeped out. In 1994 I played a solo West End Games Star Wars campaign as a female Jedi, with a male GM, a buddy of mine. Both of us were really into the campaign, the cast of characters, and the genre--honestly, it was some of the most fun roleplaying I've ever done. The game was only a solo game because there was a dearth of gamers around at the time. Anyway, one day the romantic tension we'd set up between my PC and a male NPC reached a logical point where the characters had a touching moment of romantic small-talk straight out of a chick flick. It was spot-on, tender, charming, and utterly creepy for me when, purely in-character and with no actual come-on by the happily-married GM, he touched my hand like a lover would touch a partner's hand. At that point we decided that a certain level of verisimilitude was perhaps unnecessary, and a few beer and pretzels nights out with the guys later we rustled up a couple of new players and moved on without ever speaking of the incident again. To this day I am mortified.