Hes 18 and his penis always goes soft while we have sex before he cums. But then there are rare times it doesn't go soft.but it stays hard during oral and foreplay.

I think it has to do with the mind, he must be in the mood to have sex for him not to go limb.

He might have medical issues he isn't even aware of... or be on certain medications that can cause this.

I don't know about the mood thing cause he's already hard and wants it. But then something just happens .

He use to do a lot of pills could that effect anything?

If he is on antidepressants... blood pressure, cholesterol, diabetes or a number of other meds... it can very well cause it.

Its far less a mental thing with guys... if all the physical things aren't in the right working order... all the mental readiness in the world isn't going to do a darn thing.

THe opposite of a woman where its mostly mental.

We're good physically. That's why its confusing me so much. He use to mess around fix roxies a lot. But not anymore.

With*

You said he takes lots of Pills... what does he take them for, what conditions does he have?

Stress? Try another position other than Missionary, Doggie something like the female laying face down and the male laying face down on top. Try spooning?

Missionary is one of the most aggravating positions for sex. The reason is usually the first contact that the penis has is with the pelvic bone and is usually just hanging before penetration. The penis needs constant contact to stay erect. So if he loses that contact continuously then the erection will go away.