Tossing & turning on the bed wouldn’t help it go away. The “it” in question was the erection he had been lumbered with. He couldn’t relieve it here in the RV; not with his grandpa and his cousin asleep. Speaking of his cousin, she was the one who gave him the erection. Not physically. She didn’t passionately kiss him, nor did she didn’t feel “it” up. Heck she didn’t even flash him; at least not intentionally.
They had gone swimming earlier that day, and he, by the grace of god, had seen her undressing. First he saw her back, then he saw her waist, her slender waist, then he saw her perfect ass and finally he saw her legs. For him, it was all happening in slow-mo. He hadn’t even intended to watch her strip, because he only wanted to scare her. But as he found himself getting into it, his thoughts of an Omnitrix prank were thrown away and replaced by an erection.
Her bathing suit though, that was new. The silver bathing suit made her look even better. It accentuated her curves. It was only then that he realized that somehow, in the space of ten minutes, he was looking at his dork-of-a-cousin, his hot dork-of-a-cousin, in an entirely different light. And it made him feel good. Did that mean he loved her? It couldn’t, could it? But he couldn’t deny what he was feeling. There was no real way out of it. She was making him hard¦and he liked it.
He snapped back to reality and made a decision. He needed to jack off. He got out of the bed quietly and, quietly, he made a break for the door. Not realizing for one moment that his cousin, Gwen, was not in her bed.
He found a nice and quiet spot and sat down; this was a spot where he could wank in peace. Wank about his cousin. Ben listened around for a second, to make sure that no-one was in the vicinity, and then un-buttoned and un-zipped his trousers, which he quickly slid to his ankles. He took his shirt off, and his boxers then followed, revealing his erection to him, which he gripped tightly.
In the distance, he thought that he heard a twig snap. He looked around for a second, and then, after deciding that no-one was there, began to wank furiously. Images of Gwen filled his head. In the midst of his pleasure, he began to call her name. Well, gasp her name would be more appropriate.
Gwen had gone for a little midnight swim, and as she was walking back she heard her name being called. She stopped and listened. “Gwen. Oh, god, Gwen”. She recognized the voice as being Ben’s. He sounded like he was enjoying himself. So, she decided to take a peek. What she saw shocked her. Ben, her cousin, was masturbating furiously while chanting her name. She KNEW it was wrong for him to be wanking over her; she knew it was wrong to watch, but she couldn’t tear her eyes away. As much as it was wrong, she found herself enjoying the experience. She enjoyed watching him, and knowing that it was her who he was wanking over. Gwen was aroused for the first time in her life. She continued to watch him, even as he climaxed; spraying his chest in his own jizz.