Well I have this foreskin problem.. The thing is that I CAN get it over the head of my penis when having an erection but once it's there it doesn't go back and forth easily..
It isn't painful at all but I'm concerned since the guys in porn movies seem to be able to move the foreskin back and forth quite easily and my foreskin just seems to get stuck after getting it over the head (I can unstuck it but it's not as easy as I saw in porn movies).. And when I masturbate I can do it with foreskin on the head or foreskin over the head..
So my question here is - Is this ok? I mean .. Could this ruin sex with pain or anything?

Best Regards