There's nothing like a mother in a white two-piece.
After his swim meet Tom's mother had let him watch her use a vibrator on herself. And as she was climaxing she had reached over and grabbed his cock. After a few pulls he had unloaded right in his Speedo. He couldn't believe his mother had jerked him off while she was coming right in front of him. Afterward she had taken off her wet panties and traded him for his cum filled Speedo. He pulled on her panties and with his cock still throbbing went back to his room.
The next morning it was as though nothing had happened. Tom decided not to bring up the matter. He had put on her wet panties when they had traded and was still wearing them the next morning. The sheer panties were pulled tight over his stiff cock. He wore the panties all day only cumming in them three times. He had wiped his cum off each time but they were really sticky as they slid over his cock.
The day passed without a mention of Friday night.
On Sunday morning Tom woke up late. He had been dreaming about his mother and his cock was straining to escape his mother's panties. It only took a couple strokes and he sent another load of cum into his mother's panties. Her panties were getting a real work out.
When Tom went down to the kitchen he noticed his mother was sunning herself by the pool. He decided to join her and went to put on his swim suit. Taking off her sticky panties he used his swim suit on. Not his Speedo, he rarely used his it except for swim practice. Besides, he had given it to his mom on Friday night and she hadn't given it back.
He got a towel and went outside. After jumping in the pool to cool off he sat down in the recliner next to her. She was looking good in her one-piece suit. It was red and clung to her like it wasn't going to let go. Her nipples were hard enough to poke his eye out if he was closer. The crotch of the suit was pulled up so tight it gave her a gorgeous camel toe. And he was sure he could see her clit poking up from her pussy lips, just a small protrusion but clearly visible. All this gave Tom a protrusion of his own that he did nothing to hide.
Lying there Tom's mother kept glancing at the bulge in his trunks from his growing erection. Tom pretended he didn't notice his mother staring at his cock all the while not being able to keep his eyes off he pussy mound and camel toe.
After several minutes of pretending not to look at Tom's boner Suzie asked him to change into his Speedo. It was in the drawer of her bedside table. He told her he would if she changed into her white string bikini. They both went upstairs to change.
Suzie's white string bikini was her favorite, especially when it was wet. It was just a few small pieces of soft cloth tied together with some string. The top barely covered her nipples and the bottom was just a small triangle with a string running down from the back of the suit, between her ass cheeks and ending up right up next to her pussy. When the thin material got wet it got so transparent everyone could see her hard pink nipples, her trimmed bush, and her camel toe. Her pussy was getting wet just thinking about wearing the wet bikini in front of Tom. She stared fingering her clit.