Hi, two nights ago my b/f and i had sex and it was excellent. He wanted me to cum on his penis while he was inside of me and I was trying to but I couldn't. Unless I did and didn't know which I find is hard to do. Me not being stimulated enough was not the problem because I felt the pressure building up as though I was going to explode but I just couldn't cum. My question or issue is: Is it possible for me to have cum and we both not know and why is it that when I masterbate I know that I came because of the way I feel and stuff. Im so confused on all of this. Can any one please help me?
Thanks in advance.