She felt sorry for her brother. He might have just turned eighteen, but he was still afraid of thunderstorms. He fell asleep pretty quick, laying next to her. Her turn to get back to sleep.
The dream started like a boat ride. Gentle rocking motions of the waves. She started to feel that warm tingly feeling. She was getting wet, the waves getting stronger. Wait, not waves, more like pushes or nudging. WTF?!?... Her brother was grinding against her ass! The little prick must have been dreaming too, and was getting her started up!
Too horny to go back to sleep, she laid there, wondering if he would wake up? BROTHER!, by what she could feel being rubbed against her jammy bottoms, she can't call him a "little prick" anymore!
The grinding continues and she's starting to get so wet, she must have soaked her jammies! His cock rubbing up and down her ass crack - feels good! Wiggling gently (don't want to wake him) pushing her ass out, arching her back, letting his cock grind on her wet cunt! OH FUCK!!! THAT'S THE SPOT!!! He just keeps pumping his hips like a silent fuck robot. Keep pumping! Don't stop! She starts humping back, eager to cum! OH FUCK!!! She can't hold it back, she's going to cum from her brothers cock!
Biting her lip ( so she doesn't cry out) she cums - HARD against his grinding cock! Panting now from the release and the effort to stay quiet. It must have been going on at least a half hour, and he's still rubbing his cock on her soaking wet twat! Feeling a little guilty for cumming and him not, she reaches back to free his cock. It was already free from his boxers. Grasping it, she slowly starts jerking him off. The soft moans he's making tells her he likes it. She continues jerking him for what feels like forever. Holding that hard, hot cock, she's getting all tingly again. He still hasn't woken up, must be the best dream of his life!