[m] my kink

Im 25m in a relationship and have always liked being sexual in public. The rush of not knowing if your being watched or getting caught is just exhilarating. My gf isn’t big on public stuff so it’s mainly stuck in my thoughts. Recently its been overwhelming and started to go out in public with thin shorts and no underwear to show of my bulge. I get turned on catching a girl staring, wanting what she cant have. A part of me wants to walk up to them grab their hand and put it in my cock. Any exhibitionist with ideas or thoughts