Ummmm... Pee or j*zz?

Ok.... So I was playing basketball with my boyfriend today and he was like "I have to pee!" So I told him to go pee and he said he wanted to make another shot before he went in. Plus we were like really close when we were playing (obviously) and his was like going into my hips.. And it kinda seemed like we were grinding... And idk if he did or not but I think he got a b*ner. So after awhile there was frickin like a little wet spot right by his so I dont know if it was frickin pee or j*zz or what. He's 15... I seriously don't know I'm not a troll I'm just 14 and wondering. But what do you think???