Gosh you are on the same page as me. Pretty major turn on when you are masturbated by a woman who is either married or in relationship with another man. For me its experiencing that girl friend experience with her right from the initial eye contacts to full on intimacy. And there's nothing more intimate then receiving a handjob while kissing her or making eye contact during the act.These encounters of yours are just delicious! I just love the buildup of your making eye contact with a stranger, smiling and touching your lips with your tongue as he watches you, sneaking off to get him alone, and then taking his cock out and stroking it to make it hard and make it cum!
It's always a thrill to discover a little unexpected excitement with a stranger. And it's really exciting if things go from innocent to intimate, even more so if it's with someone who belongs to someone else. Making eye contact with a stranger in ordinary settings, and then watching his eyes and face in ecstasy a few minutes later while you feel him grow big and hard in your hand as you stroke him has got to be a huge turn on for you, and definitely for him!