Why does my boyfriend get soft while we have sex?

Erectile dysfunction: There are a number of things that could lead to that problem both medical & physical. Have a good talk with your boyfriend-not when the problem has just happened-but when things are going well. He may have fears of pregnancy, a history of abuse, & you may have to face the fact that he has issues with his relationship with you. Counseling for both & a medical evaluation for him should be next.

ED: Erectile dysfunction can have many causes. Medications are a common one. Alcohol or drugs can do so as well. Low testosterone is often implicated in young men - and in women. If there is pain in buttocks with intercourse, it can be harbiinger of vascular (blood flow) causes of ed. Inadequate or too much lubrication could be a factor. Ask him if it is something you do that affects him.