My bf was wearing underwear and jeans and i was naked. he never ejaculated but his jeans felt a little wet but no wet spot. can precum/ sperm get inme?

In real life...: Sperm do not swim through clothing in real life, so keeping the clothes on is good contraception. Wearing jeans with a tight button fly, that are really tough to unbutton, and a tight waist to stop hands from slipping through, is good contraception. Of course, a sure way to prevent pregnancy is to never be alone with one another (safer to be in a cafe, public library, or among friends or family).