She rode him.

"No," Deborah giggled as she stroked my erection, making sure it was hard enough. "This is our last night to make sure every single sperm from your balls is in me."

I couldn't argue with that.

"Okay, I'm just going to lie here and you can fuck me."

"It'll be my pleasure," she purred, swinging her leg over me before squatting over my erection.

"Be gentle," I chuckled.

"No," she growled, slamming her ass down so that her cunt engulfed my cock like a predator would with its prey.

"Jesus!" I grunted as she gyrated her hips around my pole.

"Don't cum yet!" she warned as she started to bounce up and down my cock.

"I thought you wanted me to fill you up with my baby batter?" I asked, reaching up to cup her jiggling tits.

"Yes... oooh... but... oooh... I need... oooh... to... oooh... cum... oooh... first... oooh..."

"Then cum for me!" I commanded, thrusting my hips upwards against each of her downward plunges.

"Ohfuckohfuckohfuck," Deborah repeated as her cunt tightened around my shaft. With a scream of pleasure her body stiffened then shivered as her orgasmic consumed her.

I continued thrusting even after she collapsed on top of me, eventually bringing her to another orgasm.

"Okay, my turn to fuck you now," I whispered.