I am 23. I was circumcised at 21, because my foreskin was too tight and it did not slide down enough. I recently had sex for the first time. I did not use a condom or any kind of lubrication. When I tried to put my penis inside her, it kept slipping down. I could put my penis head inside her but when I tried my stroking, it slipped down and I kept losing the hold so could not really continue the intercourse. I kept trying this and because it just could not hold the firm position, I kept losing my erection. Is it because my head was too dry? also my erection was not hardest of all. I kept the erection but it was not as hard as I get it when I masturbate. Maybe because I did not develop any kind of friction. I am confused. Is something wrong with my erection? Or was my penis too dry and I should have used some kind of lube? I would appreciate you response. Thank you so much.