So this idea is completely inspired by a story I read on Literotica. The essence of the this idea is based on that story.
Essentially, I am looking for a Mother(32 - 40) and Daughter (16 - 18). This will involve Mother/Daughter Incest and Father/Daughter Incest, as well as rape. The fewer limits you have, the better.
The Story: Mark was a wussy. There was no simpler way to put it. His wife walked all over him, all the time. If he was horny and wanted sex, he had to masturbate. They only had sex when she wanted to have sex. And she was always bossing him around. Always. And now their daughter was taking after her mother, starting to get snappy and bossy with him too. And Mark hated it. He hated it so much. He wanted some one to teach them a lesson and start to respect him more. But Mark was also beginning to desire his daughter. She had seemingly blossomed overnight into a beautiful young girl.
So Mark hatched a plan. He knew a guy who could help him out. And they'd all leave happy. Mark would take his wife and daughter out for a walk in the woods. Of course, they'd get lost on the way due to a detour and end up in a secluded area. Stopping at an old gas station, Mark would go inside. His friend would be there and would tie him up, then go out and - at gunpoint - force the Mother and Daughter to come inside. Then, Marks friend would rape Marks wife, only to shock everyone when it turns out she enjoys being dominated by him. Marks friend then makes the daughter give Mark head before forcing her to fuck. Then he makes Daughter and Mother fuck eachother while having a go at them as well.
Finally, they'd be freed and would go home, 'clueless' as to the rape. And they couldn't tell anyone either - his wife had begged for more, his wife had cummed. And so had his daughter. But no, Mark wasn't going to be weak anymore. He'd slap his whore of a wife around a little to knock some sense into her. He was the new man of the house. His daughter would be his new whore too. Oh yes, Mak would shouw them all.