Sluttiest thing you have Done

disco era - t shirt no bra - obvious, plus nipples erect from guys being there, dancing.

For my birthday present I spent the night getting fucked by my boyfriend and 5 of his frat brothers, Greatest night of my life!

Not sure how "slutty" this qualifies as, but getting completely naked in places one shouldn't, letting the thrill and risk heat up my arousal and masturbating to a wildly intense orgasm. I just love the way that feels.