Prompt

A woman wakes up in her bedroom, stretches, then walks to the bathroom in a loose t-shirt. She starts masturbating on the sink edge when her stepbrother quietly opens the door and catches her. She sees him, her eyes drop to his hard cock exactly like the one in the picture, she grabs it with both hands, sucks it deeply, then pulls his hand between her legs so he slides two fingers into her wet pussy. By the end they are both visibly horny and he starts to fuck her standing against the counter.