I'm 18 years old and I've been sexually active for six months.
For a while, I've been having issues when I have sex with my boyfriend. He is very well-endowed and a very understanding person. I'm small for my age, in every sense of the word.
After only having sex for a couple of minutes, if we get that far, we typically try to switch positions and by the time we get that far, I've tightened up enough that no amount of lubricant can help. I trust him completely and he is very kind and understanding of the situation, although it is frustrating for the both of us.
Coupled with some nerve issues that keep me from becoming sexually aroused, this is a big issue.
Any ideas on what this could be or what I should do?