To boldly go where, or in whom he had not yet--okay, he wanted to fuck Ultimagirl.

Or rather, to have her fuck him, or, even better, to make love to him. Why not, she loved him, regardless of its source. He lay down on the hardwood floor, avoiding the puddle he and Ultimamom had left. "Shelby, sweetie, come on over and mount up, let's show your mommy the difference between fucking and making love." He said, his cock pointing damn near straight up as he watched Ultimagirl finish cleaning her mother and the light change in Ultimamom's eyes as he once again replaced her with another person in her body.

"In front of my mother?" Ultimagirl whined, turning her head to look him, blushing an incredibly bright red, with a drop of his cum still on her lips. She looked back at her mother, who despite her restraints, managed to lick the last drop from Ultimagirl's face, smiling as she claimed Ultraboy?s last drop for herself.

"Yes, honey, I want to show her the difference, why I'm marrying you and fucking her. And then there's my dear Ultramom, my dear UltraMILF, quite literally. You do have a lot of competition, don't you want to show it up, show it why I chose the teenager, not the experienced, buxom, mature women, who'll fuck me in any way I choose, depraved from lives on both sides of the line?"

"But, in front of her?" Suddenly she looked at her mother and laughed, though her blush never died. "Fine, it's not like it's anything she hasn't seen before. And it'll do her good to see what I can do. Oh, and just think about having us both together, it would be like having her in her prime and then as an experienced slut call it time travel, handsome."

She could talk, even if she was programmed to be modest and her repressed desire for her mother, and her mother's dominance was spilling out in odd ways, rather than it being her and a future her, it was her mother and her mother as a younger woman...interesting. Ultimagirl undressed as little as possible, pulling her uniform's bottom to the side so her pussy, with a neatly shaved landing strip was visible to the man in front of her, but not the mother behind her, who couldn?t see through the red cape that hung from her back to barely below her waist, his longer cape was providing a pad for his resting form, between hard muscles and the hardwood floor, not that his ultradurable body really needed such a thing.

Ultimagirl lowered herself slowly down onto Ultraboy's cock, swallowing him into a velvety tightness that was as wet as Ultimamom's and a good deal tighter, though there was no hymen and as Ultimagirl began to bounce on his cock, swiveling her hips and expertly grinding her clit against his chiseled abs, it was clear that her body was far from virginal, though how much of it her mind remembered was unclear.

His hands rose, freeing breasts that made nice handfuls, though not the magnificent tits of either of their mothers, tits that had fed life, among their many other adventures, these were the high, full breasts of a fertile, but not yet bred woman. Idly he wondered if she was on any birth control. She tensed at his touch, her own hands rising from his chest to his wrists, but their grip was weak. She didn't want him to reveal her bouncing tits in this room, even if her mother couldn't see through the cape. Her modesty was overcome by her need and submissiveness, as Ultraboy ripped open the top of her costume, she squealed like a stuck pig atop him and her cunt tightened almost as hard as it would when she came a moment later, realizing that the cape that had shielded her from her mother's hungry eyes had fluttered to the floor, when he ripped apart the top of her costume. He almost came right then and there, but held onto his control, barely.

Her hands covered her tits, for a moment, before Ultraboy grabbed her arms, one wrist in each hand, and pulled them down, so he was posed as if he were on a cross and she leaned over him, bare breasts hanging, hips pumping, cheeks blushing, eyes blazing. He met her thrust, for thrust now, the remnants of her costume sticking to her sweating body, a tattered flag of a defeated cause, a cause he had defeated and which now swore fealty to him and proved it in the most personal manner possible.

"Are you on birth control?" He asked, as an idea occured to him.

"Yes!" She shieked, though whether it was an answer, or merely an exclamation wasn't transparent. He didn't really care though, and, seeing as, like Ultraboy, she was immune to all STDs, he didn't bother feeling bad about the fact that he hadn't bothered with a condom, not that condoms were terribly effective for superhumans fucking each other, they tended to tear.

"What about your mother?" He teased.

"YES!" She shrieked even louder, though her embarrassment made it clear this was an answer as well as a statement of ecstacy.

As he fucked the woman who'd humiliated and defeated him, again and again, his thrusts grew more rough, his grip tighter, not that he could hurt her, or was even trying to. She kept yelling 'Yes!' as he focused on enjoying her body. Control gone, he thrust up into her, filling her with his cock, then filling her with his seed. He groaned as he claimed her as his, for the first time for him, the hundredth time for her. Not that it lessened the effect, the feel of his cum in her drove her wild, to a higher orgasm than any she had actually experienced, similar, though not identical to the one her mother had experienced not five feet away, on this very floor.

She collapsed atop him and they lay together, her blonde head nuzzling his chest, hair tickling his chin. His hand rose and petted her soft hair as her freed hands came to rest on his chest, within the warm, secure circle of his arms. He slowly softened within her as they lay in a surprisingly contented bundle, for two people who not an hour ago had hated one another.

They might have lain there forever, if not for the sound of a female voice saying "Excuse me."