So I was with my boyfriend and I touched his penis over clothes (I think). I cannot recall touching his bare penis but I did slide my hands down his pants to feel his butt. Anyway, when I touched his penis over clothes It felt moist. Not sure if it was sweat/heat or pc. So after I went home. I went to the toilet and I think I touched my underwear by accident. Could any of the sperm that could of been on my hand travel into my vagina due to the underwear material that I had touched being right on my vaginA? Please help. I'm really confused and don't know much on this so could you give me a full explanation Aswell as if I actually have got a risk or not. Thank you so much :)