I love to masturbate anywhere, but one of the things I like doing is cumming while I’m driving on a long journey. I usually have a plastic bottle of water with me, and I stick it down into my pants and between my legs while I’m driving and hump it, making it all wet. I hump and hump and moan as loudly as I can, saying things like “fuck me, fuck me hard, go on, fuck me” and I hump that bottle until it makes me cum.