She looked at the clock.
“Soon enough, but may I ask a favor?”
I ran my fingers down the smooth skin of her back, feeling the vertebra.
“Of course mother.”
“May I fuck you?”
“Yes, yes you may.”
She pressed herself up on her arms and rolled off me. I just lay there. She moved to straddle me, sliding up my legs until the soaked lips of the sex caressed my hard in passing. She was on all fours, over me. Grasping my cock she shifted her hips, dropping them, until we were engaged. Smiling into my eyes she pressed back, burying my cock in her as she moved up and was sitting on my cock. She wiggled her hips.
“Oh fuck, you’re so deep. Just lay there, please and let me drive for once.”
I laced my fingers behind my head and grinned.
“Use me mom, use my cock as your toy.”
She began to shift her hips. I felt the head of my cock get rubbed from one side and then the other as she shifted. Her hands went flat on my chest. My balls were already wet form her fluids. She was talking, mostly to herself.
“Ohhhh I’m fucking my son! This is soooooo fucking bad, but soooo good!”
Mom rode me for about three minutes. I saw the signs. Her panting increased, she was moving faster, she was going to cum. I took my hands from behind my head and put them on her ass. As she crested I yanked her down, plunging my cock as far in as I could while yelling.
“CUMM ALL OVER MY COCK, MOM! CUM FOR ME!”
Her eyes rolled up and she stopped breathing for a few seconds. I let go of her ass and she went back to fucking me.
We did that for a half an hour. Every time she came, I rammed her down and yelled at her to cum all over me. Finally, I couldn’t hold back any more, on the final plunge I yelled.
“TAKE MY CUM MOHTER! OHHHHH FFFUUUCCKKKKK!”
She collapsed on me, we were both panting. After a few seconds she weakly picked up her head.
“I think that was the best one.”
Her head fell back on my chest. We rested for a few but she needed to go. Two quick showers and soon she was at the door. I took my mother in my arms for one last, long kiss. Her eyes were soft, caring.
“I’ll be here, naked, in your front yard. Next Friday.”
She pulled away and picked up her case. As she opened the door to leave she made one last comment as the door shut.
“I just hope I’m not pregnant.”
That made one of us. That was my other fantasy.