My Sister's Ass

"Oh yeah," she groaned, pleased that it was happening. "Do it, Todd. Take me."

"Almost in," he said and half a second more, she felt the difference between him trying to put his dick inside of her versus having his dick inside of her.

Annie froze. She felt the warm of his prick. She could feel how his cock throbbed although he wasn't moving.

"We're doing it," he said in a soft, gentle voice.

"We're barely doing it," she said, pressing backwards against him and feeling herself opening farther for her brother. That was what she wanted. "I want to really do it."

"I don't want to hurt you."

"You won't," she assured him and she pushed back even farther until she reached that swollen bulge of his cock, the part that fascinated her so much. How often had she blown him or tugged on his cock while wondering how it would feel to have his cock inside of her? Now was her chance. This was her opportunity to find out for herself how it felt. As she pressed backwards, she felt her asshole stretching and straining until she eased past that point. That's when she felt full of him. "Fuck me," she begged.

Todd put his hands on her hips and eased backwards ever so slowly. His swollen cock throbbed insistently with a mind of its own. As he neared its tip, he reversed course and began pressing deeply into his sister's ass again. Annie moaned loudly.

"Yes! Fuck me!"

"So tight," he groaned.

"So good," she groaned back. "I want all of it."

Todd didn't rush and wouldn't let her do it, either. Again, he eased back and forth in a very slow fashion. The throbbing of his excited cock announced every little change. Annie never guessed something this nasty could feel this good.

"More."

"So tight," he repeated. "So hot."

"Better than pussy?"

"Better than anything," he groaned and began moving back and forth with longer strokes.

His cock felt wonderful inside her ass. She could feel the wide bulge halfway down his shaft opening her butt a bit wider as he moved in and out, making it feel even better. "We're doing it," she whimpered, wondering if it was possible for her to get off from being fucked up the ass. "We're really fucking. You're fucking your sister."

"That's so wrong," he mumbled.

Annie did something she would never do while having sex with DJ or any of her other boyfriends. She giggled. "Fuck me, bro."

"Oh, you like that?" he asked. "You like knowing it's your brother's dick in your ass?"

"Uh-huh," Annie said with a shiver. "I love my brother's dick."

"You're going to make me cum."

"Do it," she said. "Cum in your sister's ass."

"God, you are so perverted!"

His taunt fueled her thrilled. "I am," she gasped. "Your sister is a perverted slut!"

"A perverted slut for me," he said with a ragged edge to his voice. "For her brother."

"Do it," she purred, sensing he was close. "Cum in my ass. Fill your sister with your cum!"

"Oh God," he groaned, picking up the pace.

"Better hurry before Mom catches us!"

"Bitch," he growled, pushing deeper. "You deserve this. You deserve it up the ass."

His harsh word thrill her. Todd seldom called her a bitch and never during sex. Her head spun with all the thrills she felt, both the physical sensations of his fat cock in her ass and the twisted mental realization that she was fucking her brother. "Your bitch," she gasped, clutching at one of her tits and twisting her nipple. "My brother's bitch."

"Yes!" he cried out, pulling her tightly against him as his cock began to pulsate. It was a feeling she recognized, one she had felt inside her hand or mouth dozens upon dozens of times. Todd was cumming inside of her and Annie came with him. She felt her orgasm clutching at her body, forcing her to squeeze her asshole tighter around the intrusion of his hard cock and using that throbbing resistance as fuel to take her higher. As they came together, their cries of passion filled the living room.

"Oh wow," Annie gasped, slowly sliding forward until his cock left her body. "That was intense."

"Did you get off, too?"

Turning to face him, she nodded. Todd looked ravaged. A fine sheen of sweat coated his lean body. Her ass felt funny, not in a bad way, just in a different way. She glanced down at his slick prick and knew what she needed to do. She bent over, wrapped her mouth around his cock, and bobbed her head up and down a couple times. "Happy Valentine's Day," she said, kneeling in front of him. "And that lube still tastes like ass."

"You taste like ass," he said before pulling her against him and kissing her deeper than ever before. He wrapped his arms around her, held her naked body tight against his, and tangled his fingers into her hair. They kissed for a long, long time before he finally released her.

"God, I love you," she gasped, stunned by the intimacy of their kiss.

"I love you, too," he said, holding her tightly against him. "So much."

"Did it feel as good as you thought it would?"

"Yes," he said, still holding her. "Was it okay for you? I didn't hurt you, did I?"

"I'll tell you what you did," she said, pushing away from him so she could see his face. "You ruined me." She saw the concerned look that appeared on her face faster than she could finish what she was saying. "You just turned your sister into a ass-fucking slut." Todd's face instantly changed from a concerned expression to one of relief. "But only for you."

"Really?"

She nodded. "No way will I ever let DJ to do that to me."

"Then I'm not going to do it to Stacey, either," he said.

"But you promised her!"

"Fuck her," he said with a happy smile and an easy going shrug. "Besides, after today, I'm not sure I'll need another orgasm for at least a week."

Annie glanced behind her at the clock on the wall. It was getting late. "Mom will be home soon."

"Think we have time for another shower?" he asked, moving off the couch and holding out his head to her.

"If we hurry," she said, darting towards the stairs.

Beneath the spray of the shower in her bedroom, they hugged and kissed, sliding their naked bodies together with very few words exchanged between them. While they were toweling off, Annie flashed Todd a big smile.

"What?" he asked, eyeing her suspiciously. He knew her so well.

"Now we have a new record to beat," she said, giving him one more kiss before he left to get dressed. Annie watched his bare ass as he left her room and couldn't wait until the day after Valentine's Day. On Wednesday, they would have the entire day together again.

-fin-

Whew! Well, I hope you enjoyed reading that story as much as I enjoyed writing it. Annie and Todd have clearly entered a new phase in their relationship. I'll leave it up to your imagination for how that changes their lives moving forward.

I've done the best I can with self-editing this story. I hope I caught most of the errors. Please consider leaving a comment or a vote.