Well 3 slutty things I experienced:
1. When at Uni, a friend of mine (an Indian girl a one of cutest smallest girls I've known) went for a drink at a 'Salsa Night' ; she took my hand and led me to a table I the corner and then when thought she wanted a kiss asked me "Can I punch you in the face?" I though as she was about 4ft 10 it wouldn't hurt so agreed, she didn't hold back and punched me in the jaw. It hurt but I was in my twenties so a bit dumb, she then put took my cock out and said "I've always wanted to see this dick!" And began to suck me off, when I came she didn't swallow just spat the cum into her hand licked at it. I was massively turned on but we never fucked.
2. I was walking home from work at about 2 in the morning when I saw a girl squatting down behind a van, thinking she was having a piss I carried on, I saw her fingering her pussy hard. She just looked up and drunkedly laughed and asked if I wanted to join her. I didn't.
3. On the tube one summer, a woman backed into me and rubbed her ass into my crotch, until I was hard, groped my cock a few times, smiled but never tured round, then log off at Charing Cross. Every time I'm on the tube I stand now in case that happens again