She stopped swimming when he released her and immediately slid a hand into her bikini bottoms. Two fingers massaged her pussy, while her other hand pinched her exposed nipple, which had just been grinding against her own son. She used her feet to stay afloat in the deep water, and to turn to face John. She smiled at him as she rubbed herself, as she played with her breast. John smiled back, a little worried about whether she had felt his erection.
“We’re out pretty far,” he commented, and they were. No one else was out this deep.
“Mhmm,” she moaned. Her fingers worked their way inside of her cunt and she masturbated furiously. Her son, unaware, swam towards her. Her jaw was slack, her eyes half closed. John took it to mean she was tired from the vigorous swim. He moved close to his mom, but he was unable to see beneath the surface of the water. All he could see was a clear reflection of the blue sky above them. She continued to masturbate, continued to massage her breast. Her hand moved to her other breast, pulling it free from her bikini top as well. She pinched and squeezed it, not wanting to give all the pleasure to just one breast. When John came close enough, she leaned forward and kissed him on the cheek. He was surprised, but he didn’t mind.
“Love you babe,” she managed, and then she kissed him again on the lips. As she kissed him, she came, pleasure exploding between her legs. She moaned loudly. “Ohhhh,” she cried, and did not recall how long she came. When she again able to see things clearly around her, her son was look at her with concern.
“Mom? Is it a cramp?” She just nodded, thankful for the convenient excuse. “Come on, I’ll pull you in.” John pulled her arms around his chest, the same way he had held on to her. Quickly he swam towards the shore, his mom’s breasts pushing hard into his back. She suddenly realized that both of her nipples were bare against him, and she immediately came again, moaning softly. He took this to be an expression of her pain and swam faster, which only brought her body more flush against his. Her sticky crotch pushed hard into his ass, and again she came, again she moaned. She forced her pussy to remain hard against the cheeks of his ass as she orgasmed beneath the water. She just managed to replace her bikini top over her nipples by the time they reached shallow water.
John’s mom thought her body numb from pleasure, but discovered it was not as her son wrapped one arm around her hips. The touch set off yet another explosion between her legs as she came for the final time. Her legs were so weak that she did not need to fake an injury as he led her up the beach.
Halfway up the beach, John’s mom recovered some of her senses and leaned off of her son. He looked to her but she just limped on ahead of him. In all honesty, she did not want to be near her son right now. In the throes of her passion, all reason and good judgment had abandoned her, and she had given in to the desire. Now that she had been thoroughly satisfied, her head was clear to consider the events of the day. God, she thought, this was her son. What on earth was she doing? She had made blatant sexual contact with the boy. And she found it very hard to believe that he had not noticed. In fact, she had felt his erection as they swam together. But then again, she figured that was totally her fault. Her actions had left him with no choice but to become aroused, for he was 18, and she was an older, attractive woman, who had been touching him in a very sexual way.