Warning: this story contains bathroom fetish and scat. If you don't enjoy this sort of thing, then this may not be for you.
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Dianne left soon after breakfast to run some errands. In public she looked like any normal suburban mom driving around in a mini-van with her ear length blonde hair, white blouse and khaki shorts. She did have a huge rack and a big butt with a curvy waste, but was otherwise quite unassuming.
Mostly she was getting horned up for her afternoon with her son. She went to her stores and ran her errands and returned after a few hours in time for lunch.
Danny was sexually primed after his last day with his mother. He didn't beat off when she left, like he normally would, but worked outside in the yard, trying to hold his sexual energy until his mother was back.
Danny's mother came up the drive and saw her beautiful son sweating again in the sun.
"Hi honey! Can you help me get these groceries inside?"
"Sure Mom."
As Danny came to the car with his mother bent over getting the bags out he gave her plump ass a firm grab. Dianne jumped a little and handed her son the groceries. When they were inside Danny came up behind his mother and rubbed up his erection against her.
"Danny, I want to talk with you for a second." He continued rubbing up against his mom and rubbing her wide hips. "Come on baby, lets sit down at the table." Danny just wanted to hump right there, he didn't really understand.
"Danny, sweetie, I want you to know that I will do anything you want me to do. But you have to agree that everything we do is between you and me."
"Yeah Mom, I will keep it just between us."
"That means you can't squeeze my bottom in public, but you can do anything you want while its just us here."
"OK. That's fair- just between you and me Mom."
When she was convinced her son was earnest, she asked him what she really wanted to know.
"That's good, that's my sweetheart. So you have a big hard-on again. Did you masturbate while I was gone."
"No. I wanted to wait for you."
"Thank you sweetheart! I'll take good care of you. Now, did you fantasize about my big butt when I was gone?"
"Oh Mom, I love it. I can't stop thinking about it."
"And what were you thinking about?"