Gina, of course

Brett had wondered when the levy would break and one of them would start in on the others. He hadn't for a moment doubted it would be Gina. She wanted those tits and felt no reason not to do what she pleased with them.

Gina rose from the armchair and sauntered over to their mother with a new confidence. The motion boardered on predatory, and she made her control known when she put up one knee, then the other on either side of Penny's lap. She heafted one massive tit up and held it as if she expected an answer. The room seemed to pause, the video going ignored. "Why do you work so hard to cover these up?" She asked when Penny didn't say anything.

"B... But I'm not," Penny said, quietly.

"I don't mean now, you stupid slut. I mean outside. You have these fucking gifts and you don't even own a goddamn v-neck."

"Oh, I guess I'm embare..."

"Fuck that," Gina interrupted. "Fuck that, and fuck you. You don't get to dress yourself if you are gonna waste these sexy things."

Penny blushed, surprised at her arrousal. She didn't say anything. Gina started to play with both tits, eliciting a little moan from her mother.

That was when Brett had an idea. He would get to fucking them all himself in due time, but in the meantime he wanted to watch, and to live vicariously through his more dominant sister. He gave Gina a cock that riveled his own, and he did it retroactively. Gina had always had both a cock and a pussy, and had always loved using both on whoever she wanted to fuck. Suddenly there was a clear bulge down Gina's pant leg. Penny looked to it in surprise, at the size of it rather than at its existance. Gina smiled wickedly.

Gina, still straddling her mother's lap, unbuttoned her tight pants and pulled out her cock. She pulled it up and let it slap down against Penny's chest, between her tits. "I bet a bitch in heat like you knows what to do with this."

She did. It was one of her late husband's favorite things. She squeezed her tits together around the giant cock. She only saueezed harder as Gina began to fuck them.

Brett could tell Penny only really liked this for the control. She loved how her daughter dominated her. But she wasn't getting any physical pleasure from it. He changed her breasts so that every inch of them was as sensitive as her clit. She immediately gasped out in pleasure, her big, full eyes going wide. Soon, both women were moaning in pleasure.