Carol could not get enough of her son's cock. For the next few days she would tease him by wearing her new undergarments then drop to her knees and suck him off. She learned that she only wanted to cum with her mouth full of her son's hard cock. She sucked him several times a day. He often spanked his mother's panty covered ass and thrust his cock down her throat. Carol felt like she was such a slut. She felt both shame and lust when her knees became rug burned. She knew this was the price she paid for being such a slut and she loved it. She saw her boss looking at her nylon covered knees one day and felt as though she was wearing a sign that said I'm a cock sucking whore. The idea that he might think of her on her knees excited her terribly.
Then came the inevitable. One night at dinner Carol complained about neck being sore.
"Go to your room and lie on your bed. After I finish the dishes I'll give you a nice massage." Carol didn't argue. She wondered if it was because his offer was so nice or because his tone was authoritative. It was more like a command than an offer.
A few minutes later David pushed open the door. The room was lit by a few candles and he saw his mother laying on the bed. She was naked. A bottle of baby oil lay between her legs. He was growing hard already.
Carol felt him crawl on the bed and her eyes flew open when she felt the warm skin of his legs on hers. She glanced in the mirror and saw her son was naked and moving up to straddle her legs. This was way too dangerous; why couldn't she open her mouth and stop him. The words were there but her lips wouldn't move.