“Babe,” John’s mom gasped, looking over at him.
“Mmm?”
“I’m going to take a swim.” She needed to wash away the evidence. She just hoped she could make it to the water without anyone noticing.
“Mmm.”
She left, and John noticed that she was still wearing her shorts. That thought was soon replaced by naughtier ones, most notably that he could covertly stroke his cock now that his mom had left.
Stretched out on his back, he resumed gazing at the topless girl. She was sitting up on her elbows now, rummaging through her beach bag. Unfortunately, John’s angle was such that he could not see her breasts very well. But he was patient. Lazily he rubbed his cock through his bathing suit, awaiting the moment where he might get a better view. His legs were still bent into the air so that he might hide his inevitable erection. A minute or two later, his patience was rewarded. The young girl closed her bag and lifted it to the side, causing her upper body to rise from her towel. Her supple breasts and perfect nipples were in plain view, hanging down from her chest and just short of her beach towel. John felt a drop in his stomach and a tingle in his cock as his voyeurism paid off. He did not want to waste the image before him, so he eagerly began masturbating through his bathing suit.
Although the beach was not too crowded, John was cautious, moving only his wrist so that he would not draw attention. He rubbed his fingers up and down the length of his arcing cock, openly staring at the girl’s soft tits. They swayed as she pushed the bag away a little, but remained perfectly in view. John gasped, his arousal growing. He imagined cupping those breasts – no, sucking them, feeding off of them. It was a fantasy he often enjoyed and it did not fail him now. His cock stood straight up, throbbing.
To John’s disappointment, the girl laid back down, pushing her nipples down against her towel and out of view. He sighed, but then she slid forward, trying to grab at something… what was it? John could not tell, but it didn’t matter. What mattered was that as she pushed forward, her bathing suit bottoms, trapped between her body and her towel, did not. They remained where they were and her ass slid out of them slightly. John’s cock grew in response. He could now see the crack of her ass as well as the swell of her breasts squashed beneath her. He was so turned on that his mouth was opened slightly, jaw slack. The skin on her smooth curved ass was much lighter than her tanned lower back. It would not be for long, John thought, for she made no effort to adjust her bottoms. Instead she stretched her body out, causing them to slip down even further still.
John squeezed his cock, closing his eyes in pleasure. He forced them open again, not wanting to look away from those large soft breasts and that tantalizing ass crack. He thought about walking over there and rubbing lotion on her body. Rubbing it down her back, down her ass, pushing her bottoms down her thighs and trailing his finger down the crack of her ass. He began to rub himself faster as he thought about his finger sliding lower, between her thighs. He imagined the moans she would make as he finger fucked her, right there on the beach, with everyone to watch. He was reaching a climax, almost to the point of no return, where he would no longer have the choice of whether or not he wanted to actually cum all over himself in public.