Hello guys.

Am i the only one, or or there other guys with this problem?

It happens sometimes with me, when i'm having sex, or when i "don't sit good" , that my balls go inside my body. I meen: they really jump inside my body. It doesnt really hurt, but it doesnt feel really good. Is this normal?? It's not only when i'm having cold, but also when it's hot.

Thanks.

PS, my English isnt very good