Most of the time during sex, my husband is limp. He still performs, but he does not get a full erection. I try to help him in different ways, but it is not really working. If he has a full erection at the beginning, it is gone after a few minutes. He says it is because his penis is big and maybe doesn't get enough circulation. In all honesty, he is pretty average, which I would never say to him. This has gone on since we met, but I guess I'm not getting satisfied sexually and need help. I ask him to do oral sex, but he acts like it is a chore. When he does it, I just don't get satisfied. It is too fast and not very good. I do orgasm, but not like I used to in a past relationship. Please help!! He is going to be 39 in October and is not on any medication.