Eric sat in his bed staring off into space. If he died right now that would be just fine. After all, he had experienced what was the pinnacle for him. Last night he, a scrawny nerdy guy, had fucked the hottest woman he had ever seen - in her ass.
Just around the time that Eric was reflecting on the events of the previous evening his sister was stirring awake. The memories came flooding back for Cassie. "Shit. What did I do," she said to herself squinting to focus her eyes. But, she knew what had happened.
Eric stretched feeling himself harden at the thought that today would bring another opportunity to have his sister's ass again. "I hope I can last a little longer this time. It went by too quickly" Eric was alone and speaking to no one in particular. Eric laughed to himself as he thought about how he had struggled with whether or not he should do anything sexual to his sister. After what he had experienced he was sure that he had been a fool for even hesitating for a moment. "Idiot!" he thought.
As she was trying to contextualize what had happened and why she acted as she had she began to feel the sensation in her pussy and ass again. "No," Cassie said aloud "this can't be happening again." It was though. The need was slowly building and she knew it because Eric was starting to invade her thoughts.
For Eric it was kind of like Christmas. He knew he was going to get a present but he wasn't sure when. He had commanded that Cass would need him to fuck her ass again but hadn't specified when. Why hadn't he specified when?!?
Just as he was thinking about this his room door opened and Cassie entered. She was obviously highly aroused as her nipples showed through her tiny t-shirt and she was running her hands over her breasts and between her legs. "Eric," she breathed more than said "Eric I need your cock."
She was in a bad way. Her panties were practically see through at this point. The look in her eyes was animalistic. It didn't help that his boner was tenting his boxers giving her something to fixate on. Then Eric saw something that shocked him -she had literally begun to drool. He felt powerful.
Eric wanted her ass but he also wanted to know what else he could get out of her. He figured in that state he could use her desire to his benefit. "I'll let you have this," he said stroking himself through his boxers " if you blow me first." Cassie was hungry for his cock her pussy was on fire and her ass was sending signals of desperation to her brain. She would have done anything to get it in her at that point.
She didn't even bother to answer she just traversed the room, dropped to her knees and fished out his hard cock. The need drove her like a mad woman. She was taking him to the balls fully up and down his shaft her head was bobbing.Cassie was sucking him as hard and fast as she could. Eric's balls were contracting already his orgasm was imminent. Eric grabbed Cassie's hair and began fucking her mouth.
"Fuck. I'm gonna cum!," Eric yelled. He pulled her by the hair so that her face was pressed against his groin her nose in his pubic hairs. He started shooting down her throat. Cassie was having a hard time breathing but Eric was lost in his orgasm and didn't notice he just held her tightly against him as rope after rope shot out of his thick member down her throat choking her in the process.
Tears streamed down Cassie's face as she was assaulted by Eric's cock. She was gagging and the few seconds of air she was able to get just weren't enough. She wondered for a moment if she would choke to death on Eric's cock, his magnificent cock. Cassie realized then that even this brutality was driving her crazy and that she was feeling that sensation in the pit of her stomach again. "Is there anything that he could do to me that won't make me orgasm" she thought.
Finally Eric was done and let go of her. He sat on his bed trying to catch his breath as Cassie fell to the floor trying to do the same. When Eric was able to catch his breath enough to focus on Cassie he saw what a mess she was. Tears were still running down her cheeks, her mouth was covered in cum and she had snot and cum coming out of her nose. She looked like a cheap whore but at the same time - to him - she had never been more beautiful.
"Damn you're fucking hot right now"
It was lost on Cassie though because the need in her ass was all she could focus on. "Need your cock," she just kept repeating as she moved towards him and attempted to sit on it.
"Cass, it's not read..." She wasn't hearing it though. "Need your cock!" As she squatted over him Cassie reached down and began stroking his limp cock back to life. The stroking helped but the visual of her squatting there her ass in the air over him sent the blood rushing back to his cock.
---------------------------------------------------
Cassie awoke looking around to get her bearings. She realized quickly enough that she was in Eric's room particularly when she went to lift herself and discovered that a combination of sweat and their sexual juices plus the time they had been laying like that had formed a weak adhesive between their bodies. As she pushed off her brother you could hear the bodies come apart.