I recently started one of my first relationships. We already agreed that we were not going to have sex until marriage if that ever comes up. We are however very intimate. We sleep together, cuddle, make out, etc, but no sex or nothing remotely close to it.The problem I have is that every time were together intimately i get an erection. I happen to get erections very easily. The last time we were together she was on top of me and she noticed it.She was somewhat disturbed by that, thinking that i was planning to have sex with her. So now every time she wants to get intimate i kinda shy away or if i do get an erection, i have to hide it.Why do i get erections so easily and what can i do to prevent them from happening at the wrong time.