Alyssa and Tyler had been fucking each other for about six months, one sneaking into the other's room, whichever was more convenient. Tyler's long cock and large, pronounced head had become one of Alyssa's favorites. Not to mention Tyler's enormous cum shots had taken her swallowing to another level.

Saturday, after Alyssa's gymnastics meet, Tyler and his sister were dropped off at home, and their parents were going brewery hopping with some neighbors. They would be gone most of the afternoon.

Alyssa took a shower and got ready. With their parents being gone for a few hours, they were able to mess around in other rooms of the house for a change. She dried her hair, put on a little makeup, and put on Tyler's favorite bodysuit and jean shorts.

She went to Tyler's room once she was ready and asked if he wanted to go downstairs. He got off his bed and followed her down the stairs. His eyes were glued to his sister's ass the entire time.

Alyssa had a surprise for her brother. She was finally going to let him slip his cock into her ass. He had been wanting to for a while, but she had been reluctant.

Once in the family room, Tyler dropped Alyssa's jean shorts. I loved seeing his sister's ass in that thong-back bodysuit. Her long, lean legs led up to a great little pair of butt cheeks.

He grabbed her little ass and began to rub and squeeze her perfect little cheeks. "I want in your butt so bad," he whispered in her ear.

"Well, today you are in luck," she told him. "I am going to grant you your wish."

"NO WAY! Are you serious? OMG, I have wanted in there from that first time you slid down on my dick!"

Alyssa turned around, her tiny nipples were rock hard and poking through her bodysuit. They found their way between Tyler's fingers as he began to tug on them softly. Alyssa always reacted to her nipples being played with; it helped fuel the fire that burned deep inside of her.

One of Tyler's hands slipped between her legs, reaching to unhook her bodysuit so he could get started. Alyssa's perfect thigh gap made it easy for him. Once unhooked, he slid his fingers back and forth through his sister's little lips and back to circle her asshole with one finger.

Alyssa lowered to her knees. She wanted his cock in her mouth, bad. She pulled his sweats down to reveal his cock and balls hanging, waiting for her to do something with them.

Without using her hands, she leaned in and scooped up the head of his dick with her mouth. She went to work, sucking his cock! One huge advantage Alyssa had going for her was that she had zero gag reflex.

Tyler's cock filled out quickly. Long, hard, with that huge head on the end, giving her something to concentrate on when it wasn't in her throat.

He gathered up his sister's long blonde hair and gripped it tightly. He guided her head back and forth. Pulling the head of his cock to the edge of her lips and then burying it deep into her throat, and would hold her there for several seconds before letting up.

Alyssa took her brother's cock from her mouth, "Wanna fuck?" she said with a huge smile.

Tyler just nodded and moved to the couch. Alyssa stood up, took her bodysuit off, and laid down on the couch, knees up and open wide. Tyler dove down and took a few licks before taking up position and sliding his cock into his sister's wanting pussy. A few pushes later, and he was now balls deep inside of her. His hips popped back and forth, driving his cock into his sister like he had many times before.

Alyssa wrapped her long, smooth legs around him. As wrong as what was happening was, she was glad it happened and continued to happen. It worked out pretty well for both of them!

"Do you want to cum in my pussy first, then go in my butt, or what would you like to do?" She asked with a naughty grin.

"I want in your ass so bad!" he blurted out. "Do you have some lube?"

"Get up, I will be right back," and she ran upstairs.

A few seconds later, she was back with a tube of lube she had gotten at Walgreens. She spun the cap off and got back on the couch on her hands and knees and backed up to him. She squeezed some of the lube into her hand and smeared it all over her brother's cock. She took some more on her fingers and put it on her asshole, slowly slipping a finger in and out.

"You have to go super slow, okay? If you push it in too fast it is going to hurt like hell."

"I will just stay still and you can push back on me, okay? Will that work better?" he asked.

"OK, we can do that."

He kept his eyes glued on his sister's ass as it moved back to him. The head of his cock hit her asshole, giving him a huge rush. Finally, he was going to get tofuck her in the ass!

She pushed back on his cock slowly, sometimes gaining ground, other times losing it. This time, she was determined to get him in. She pushed back on him with steady pressure. She was slowly opening up, and the head of his cock started to disappear.

She knew it was close, so she pushed back on him a little harder. That is when she felt the "pop" of his head going in. She let out a "FUCK" and her eyes rolled into the back of her head. She couldn't breathe, and she got dizzy from the shock and pain. She had the wherewithal not to pull away and have him fall out of her. It was in, and she didn't want to have to try and get it in again.

Tyler took her by the hips, pulled her back onto him as he pushed his hips into her, looking down the entire time, watching his cock slip into her asshole.

He was not going to last long, and he knew it. He pumped with long, deliberate strokes. Watching his cock disappear into her ass was too much for him. He pulled her back and held her tight onto him. She knew what was about to happen.

"Fucking cum in my ass," she said, looking back at him. "You have wanted this from almost the start, so cum in my ass!"

His grunts confirmed that he was pumping his load into her ass. Once he was finished, he ever so slowly pulled back. When his cock fell from Alyssa's asshole, she let out a breath of relief.

Alyssa flopped forward on the couch, and Tyler leaned down, kissing each of her ass cheeks several times.

"Was it as good as you thought it would be?" she asked.

"You know we have to do this more, right?"

"Yeah, I know. Nothing is just a one-time deal. Go clean up and we can do it again, okay?"

Tyler took off like a shot to clean up so he could go for another round.

When Tyler got back, Alyssa was already kneeling on the floor. She took him in her mouth and began aggressively sucking his dick. It wasn't long and Tyler's cock was hard and he was ready for more of his sister's ass.

This time Alyssa stayed kneeling on the floor and laid her chest on the couch. Ty took the tube of lube and put a glob on the head of his cock and then coated it with one finger. Placing the head of his cock against her asshole, it was up to him this time to push into her. He didn't do too bad; Alyssa only jumped a couple of times before his cock disappeared inside her cute little ass.

This time Tyler was able to ride his sister's ass much longer. Again, his eyes glued to watching his cock sliding in and out of her asshole. The longer Tyler fucked her, the more whimpers and moans escaped from her mouth.

"How much longer?" she asked. "I'm not sure how much more I can take."

"You want me to cum in you?"

"Yes, of course. Why wouldn't you?"

"Then tell me," he demanded.

She started dirty-talking him, and that gave him just what he needed. He pushed into her so hard the front of her legs hurt, and he unleashed the second load into her asshole.

When he was finished cumming in her for the second time, he just stayed inside of her, leaving his cock to just sit inside of her. When he did pull out, the two of them cleaned up, got dressed, and hung out for either their parents to get home or a round three to happen.