Side Effects

Eventually, Abbey's hand left her pussy, her juices beginning to pool on his chest and her fingers covered in a sticky film. She reached out to caress his face, the thumb rubbing over his cheek and her fingertips tracing his jaw, before running up over his forehead and through his hair.

Suddenly, her caress became a vise as she gripped his hair, pulling at the roots. She shifted forwards, lifting her hips and repositioning herself so that her pussy loomed over Gregg's face. His vision was filled with it, and his nostrils overflowed with her scent.

"Take a breath."

Gregg did, and the next second Abbey's labia were mashed over his face, her hand pulling his face up by the hair as her body was pushing down.

Gregg stuck out his tongue and lapped at her pussy, lightly nipping her lips with his teeth. He ran his tongue up and down the cleft between, reveling in the taste of her juices, lapping them up as his tongue circled the entrance to her vagina. He stabbed at the tight hole with his tongue and felt her thighs close and flex around his head.

By this point, Gregg was not so much an active participant as a human sex toy. While he lashed at her pussy, she ground her hips into his face, rubbing her clit against his nose and thrusting down onto his tongue. She began to moan as she impaled herself on him, and he felt her walls begin to flutter as he fucked her with his mouth, twisting his tongue inside of her. Her smell, being so close to the thing he desired, was driving Gregg wild. He could feel his balls tightening in anticipation of release, and his dick rubbing against the soaked front of his jeans.

Abruptly, Abbey released his head and let it fall back to the cushion. He tried to raise it, to rebury his mouth in her drooling hole, but she planted a hand on his forehead, and roughly pushed him back. He felt the weight come off his arms, and tried once again to break them free, but was prevented as Abbey once again gripped his wrists with both hands. Taking one in each, she pulled his arms down alongside his body and pressed them to the cushions, sliding her hips back along his chest as she did so and leaving a slimy trail of juices. Her hips slid over his jeans, and the weight of her felt heavenly.

Holding his hands down to the seat of the couch, she took up a position much like the one she was in earlier; legs folded beneath her, upright, but now positioned over his crotch. Releasing one of his hands, she reached down below herself and unzipped the fly, pulling his dick out and rubbing it against her slit, pinned between her hand and her pussy. Her previous actions had nearly driven him to the point of madness, and the head of his cock was an angry purple, his dick jumping with his heartbeat. He was enveloped in warmth as she slid over him, coating his dick with her hot juices and nuzzling the head against her clit.

Eyes closed, she lifted her hips and pushed back with her hand, and Gregg felt the tip of his dick dip into her waiting hole. Taking a deep breath, Abbey began to lower herself, letting out a cry as the head popped in that turned into a guttural moan as she lowered herself halfway down it's length. She lifted her hips, and after two more thrusts, had buried him to the hilt, her clit rubbing on his pubic bone. She opened her eyes.

"I'm mad at you."

She began to rock forward and back, her bean becoming pinched between them and grinding on him with each motion.

"I'm mad because you took me, and you had no right."

With every backward motion, she began to raise her hips, sliding up and down his cock. He felt a trail of her lubrication slide through his pubic hair.

"I'm mad because you kissed me, sucked my tits, and fucked me senseless like a whore, even when I told you to stop."

She was rocking back nearly halfway off his cock now, and was beginning to gasp for breath.

"And I'm mad because when you did, you gave me the best orgasm OF MY LIFE. I'm mad that MY BROTHER, the one person who shouldn't, picked me up, tore my clothes off, treated me like a fuck-toy, sunk his cock into me and bit my tits as I writhed around on it like a slut, and I came hardooooh god, oh fuck yes."

She slowed down, catching her breath. She locked eyes with him, her one hand moving to continue giving affection to her engorged clit, and the other releasing his other wrist to massage her breast. Abbey began pinching her nipple and pulling it away from her body, twisting it, as Gregg felt her vagina ooze hot oil and squeeze around his cock.

"So now I'm going to use you. I'm going to do to you what you did to me. I'm going to fuck you until I pop and there's nothing you can do about it."

She began fucking him in earnest.

Gregg was very close to coming, though it didn't look like Abbey was that far off either. She was leaning on one hand over him, head hanging, surrounded by her sweat-soaked hair and the remains of her ponytail. Her speech had been reduced to a barely audible string of "oh fuck, oh please," repeated over and over as her breath once again grew ragged. She threw herself down on his cock and her other hand furiously rubbed her clit. Wet smacks resonated throughout the room.

"OOOOOOOH GOD"

Once again, Gregg felt her walls clamp down hard as ecstasy took her, spasms wracking her body and causing her to fall forwards across his chest. The feeling of Abbey writhing on top of him finally tipped him over the edge as well, and his cock swelled as it began to pump its load deep within her. Abbey wrapped her arms around him as a massive spasm ran through her, and a shot of pain made him aware of her teeth sinking into his shoulder.

They lay like that for a time, both siblings twitching as their respective climaxes ran their course. Gregg's dick began to grow soft, and he felt Abbey's pussy pulse around him as he slid out of her, loathe to give him up. His crotch began to grow cool as their spendings dried in the air.

Finally, Abbey lifted herself up on her arms and looked at him, a grin on her face.

"Well, looks like we match now, bro"

Gregg was confused for a second, but then it clicked, "Oh right, the bite marks."

They were silent for a moment and then, somberly, Gregg asked, "Are we okay?"

"We're fine on my end. As I see it this makes us even. But this shouldn't happen again."

"I know, it's just with this medication...I'm not sure I can help it. I'll call the doc today and look into getting it changed, but there are some meds you can't just quit taking."

"I know."

"I'm sorry that I'm broken and need these fucking meds."

Abbey blinked in surprise, and stared deep into his eyes.

"You're not broken," she leaned over, and lowered herself to his face, her parted lips lovingly caressing his.

She lifted herself back up, "I love the shit out of you, you know that?"

A small smile played across Gregg's face, "Love you too, Abbey."

Abbey sat back up and stood from the couch. "Now then, I am late for class, and I imagine this interrupted your routine quite a bit. I'm going to go shower, and then I'm outta here. Don't accidentally fuck me on my way out the door!" She said the last part with a smile, and then moved off. The sound of running water filled the still air.

Gregg lay there for several minutes, catching his breath and processing what had happened. Finally, he stood, tucking his penis back into his pants and slowly walking to the kichen. Gregg grabbed the phone and started to dial the number for his doctor, then stopped and returned it to it's cradle. He could call later.

He collapsed in his chair and leaned back, staring at the ceiling for a long time. He heard the front door slam, announcing to the world that Abbey had indeed left the building. Gregg smiled to himself. That girl never could do anything quietly. The morning sun danced through the window, and fell on the room, making shifting patterns on the walls.

And Gregg thought to himself that maybe it was time for his routine to change.