My boyfriend and i were "dry humping" while he was wearing nothing and I was wearing thick leggings and no underwear. I am not sure if it was the pre-cm or just my own "wetness" that was on my leggings, probably about the size of a nickel. I took my leggings off an hour after and changed my pants. I have been reading a lot of different things that sperm CAN travel through clothes and that it CAN'T. I don't get my period for another 2 weeks and I am freaking out!