AF John : What is a guy to do?

John's mind knew what position he was in. He had memories to taking his wife in a position like this, with her round butt in the air and her pussy begging for attention. It was one of his major turn ons, back when they were married. Even after the divorce, when he thought about it he would get hard, but now instead he felt more of a yearn in his groin. His brain knew that his curvy bum was up and his vagina was open and available, he could feel the cool air against it. Once Julie's finger was out of him, with a large mental effort he started to stand up. Unfortunately, it was just before Julie slid her dick between his legs, rubbing her length along his opening. He fell forward again.
What his brain couldn't do what stop his body from staying in that vulnerable state. The need he felt in his new equipment for Julie's sizable cock was superceding his brain trying to get him out of this situation. One that was getting worse since Julie was rubbing her dick back and forth, teasing John. No, Julie was guiding his hips to move back and forth with her hands. He was the one moving! He heard Julie laughing, and felt his anger rise.
"Julie, let...go," said John through the pleasure radiating through his pussy and body. He felt Julie's hands leave his hips, but his body didn't stop. He couldn't get his body to stop, he was spreading his juices over another person's dick, just like his wife used to do to him. He moaned before he could stop himself.
"John, you are making the sexiest noises. Your words may say no, but your body says yes. Well, girl, here you go," rumbled Julie. John stopped feeling the cock under him. His brain worried while his vagina felt empty. But a moment later, he started to get more and more full until what was in him hit what he now realized was his cervix. Orgasm rocked his body, causing him to moan as he arched his back and flexed his head down. He could see Julie's legs behind him and her dick was inside of him.
"Looks like you love dick, JOAN! laughed Julie