I was curious on two things,First
Hello dear, I understand your concern. In my opinion the sperm cannot get through fabric. And yes sperm will be destroyed by enzyme in saliva, but it might stay long on lips. The lifespan of sperm is 24-36 hours. But within its lifespan it should meet egg or ovum for fertilization which results in pregnancy. There is no chance for fertilization to occur even if sperm is alive on lips so there by no chance for pregnancy. Best regards...