She blows her brother

“Mmmm,” Billy moaned, enjoying the feeling of Heather’s soft hand stroking up and down his stiff cock. She stroked nice and slow, mesmerized by her brother’s cock, only inches from her face. Her other hand lightly fondled his balls, rolling them around, brushing the skin of his scrotum with her fingernails.

Billy cupped his hands behind his head, relaxing even more. He spread his legs about as wide as they went, and bent his knees, opening himself up completely to his sister. Heather began stroking a bit faster, until a drop of pre-cum appeared on the tip of his penis. She stopped stroking, just staring at it for a moment. Billy kept his eyes closed, but he could feel Heather’s grip tighten around his shaft as she pointed it toward her face, examining his cock. He could feel her hot breath getting closer and closer to his cock. This was pure agony for Billy, but he wanted to see what Heather would do, without further pushing.

Finally he felt the tip of her tongue slide across his piss slit. She licked the pre-cum from his cock, taking it into her mouth and tasting it. Then she stuck out her tongue again, licking around the head of his cock. Her tongue dipped into his piss slit, trying to draw out more pre-cum. Then she took the head of his cock into her mouth, sucking and licking at the tender skin.

She began bobbing her head up and down, swirling her tongue around as she continued fondling his balls. When Bobby looked down, he saw that Heather had pushed her free hand under her body and was humping against her hand as she sucked him off.

That really got Bobby excited. He started thrusting his hips up at his sister’s mouth, trying to fuck her face. Heather tried to time her bobs against his thrusts, but occasionally she went down too far as he was pushing up, and she gagged as his cock hit the back of her throat. Her hand was frantically rubbing his balls, with her fingers now straying down to press against his perineum, and even occasionally rub his asshole. Her ass was bouncing up and down against her hand, bringing herself closer to orgasm as well.

Billy could feel himself getting close to the point of no return. One last push into Heather’s mind, and he was ready to cum. Heather coated her finger in some of the saliva that was dripping from her mouth and down his cock. Then she positioned her middle finger right at Billy’s back door. In one simultaneous motion, Heather thrust her head down forcefully, pushing Billy’s cock right past the back of her mouth and into her throat, while at the same time pushing up with her middle finger, ramming it into Billy’s ass- as Billy had pushed into her mind.

The effect was explosive. Billy burst forth with torrents of cum, filling Heather’s throat, sliding into her stomach. Rivulets of cum escaped out the corners of her mouth, but she kept his cock planted balls deep in her mouth. The moment that Billy’s cum hit her throat, Heather also exploded in a massive orgasm- the final instruction from Billy. Her pussy convulsed around her fingers, and her ass bounced violently around on the floor.

Billy thought he would never stop cumming, but eventually the spurts slowed, and then stopped. Heather pulled her mouth off his cock, licking around the head and shaft, as well as his balls, cleaning up the escaped cum. Then she got up, flashed Billy a smile, and walked back to her room.

Billy just lay there, exhausted, as he considered the possibilities.