Lust Laboratory

As usual, Dexter was working in his lab, and Dee Dee was getting in the way. When she almost took one of Dexter’s chemicals, the scientist threw a wrench at her head, knocking her out. Of course, the boy genius was worried about his sister.

But when Dexter started checking her out, he smelled her sweet scent, and saw the big ass she had. Taking advantage of the situation, Dexter began to undress her, stretching her pussy with his hands. It was the perfect opportunity for the boy to fuck his older sister, leaving her virginity intact.

Minutes passed, and Dee Dee woke up and felt her little brother fucking her big ass with his cock. Of course, she protested, but Dexter made up an excuse, saying he was just checking her anus for medical reasons. She didn’t believe him, but for the pleasure she felt made her continue.

Days and weeks went by, and the siblings continued their wild fucking. Dee Dee no longer felt pain when Dexter fucked her ass, only immense pleasure during their prolonged intimacy. That is, until one day Dee Dee put a stop to everything.

It turns out that Dee Dee was so hurt when Dexter fucked her, because her father also gave her that “medical treatment”. Dexter was outraged, but he couldn’t do anything as he watched his sister choose her father’s cock over his own.

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