Well, my girlfriend and i want to have sex soon, but I'm having some serious doubts about myself. I have a uncircumcised penis and have only pulled back the foreskin a few times to wash it, but it is painful. I also masturbate without lube (my skin surrounding my penis moves even when erect), and sometimes the semen gets under the foreskin. I have never tried on a condom either and i dunno if i have to pull back the foreskin of my penis to do so.
Thanks in advance for all the help.