You didn't think a prettier face is all her new cocks are capable of, did you?

"S-Sarah, my boobies feel all tingly..." Adam had grabbed his marvelous orbs, massaging them as his fingers traced around the stiff nipples capping them. "Wh-what's going onnnh...?"

"I don't know, slutboy. Why don't you let me check?"

Without waiting for his answer, Sarah pulled his hands away, her eyes lighting up at what she saw. A dimple had developed just below Adam's nipples, lengthening downwards and deepening at the same time. The nipple itself was changing, too, somehow folding in on itself, already covered by what seemed to be a little hood.

"Wha--? Nooo. Can't be!" Sarah's grin was almost feral. This was crazy, sexy, positively freaky! It made her three cocks so hard they hurt.

Leaning forwards and pressing her brother's arms against his sides, she began to lick the deepening slit, making Adam throw his head back and howl in pleasure. Sarah could feel two distinct lips on each side of the slit, quivering as she pushed her tongue between them, rewarded by a squirt of milk. There was a hole, there, too, or rather a deepening, round depression that expanded away from Sarah's tongue until she couldn't feel it's end any more. Adam, writhing, mewling, squealing, had lost all ability to form any kind of coherent sentence, babbling pleasure-mad as his breasts bounced with his lustful convulsions.

"Well, look at that!" Sarah said after standing back up, chin smeared with milk. Before her, on her delirious brother's tits, a pair of slick, pussies dripping with milk instead of femcum had formed, their engorged clits where his nipples would have been. "Ain't that fitting, slutboy?"

"Ffffuck meee~..."

"Figures that that would be the first thing you say when you can talk again," Sarah grinned - but she was only to happy to fulfill her slutboy's wish. After all, she had to try these new, exciting holes with her equally new, excited cocks. And maybe later, she'd use the massive main event in her crotch to stretch out Adam's huge boobies...

But for now, there were two other stiff poles that required attention. Grabbing both twitching, dripping cocks, Sarah dragged their swollen tips along Adam's fluttering nipple pussies, making him moan deeply - and when she brushed against the newly grown clitorises, Adam's knees buckled and he sank to the floor, mewling and gasping as his hands massaged his tits, fingers slipping into the drooling slits now capping them.

"Do you want me to fuck your tits or not?" Sarah was somewhere between amusement at the wanton display of uncontrolled lust and annoyance at having to follow Adam.

"Yesh pleeeaashe~..." Adam was slurring his words, tongue lolling from his slack mouth as he kept playing with his boobies, stirring up the dripping juices running down the fat orbs as they jiggled on his chest. "Fuck my pusheeesh!"

Sarah was happy to oblige - Adam's uncontrolled masturbating had her two nipple dicks so hard they ached and bounced with every heartbeat, and even the spent fuckstick between her legs throbbed and pulsed, yet refused to get fully hard. At least with Adam already squirming and moaning on the floor, the logistics wouldn't be complicated in the slightest.

"Damn, slutboy..." Kneeling down, Sarah pushed apart Adam's thick thighs to reveal his reddened, dripping pussy, his step-sister's last load still dripping down Adam's generous ass. You need it bad, huh?"

"Nnghfuuuck~..." Adam's eyes had rolled up in his head, his tongue hanging from his mouth as he gyrated his hips, pussy gaping invitingly, begging to be filled.

But as much as Sarah's heart thundered in excitement, her main cock struggled to get hard. It throbbed and pulsed and swelled, but much too slow for her liking - luckily, she had two more that were more than ready to be stuffed into a wet, inviting snatch. Leaning forwards, Sarah planted both hands to the left and right of her slutboy's body, nipplecocks dangling downwards and pushing into her brother's soft breasts. Well, they would soon be pushing much deeper into them.

"Ready or not, here I come!"

Adam's body was very much ready, his nipple pussies slick and twitching as Sarah guided her painfully hard breast dicks inside them. His mind, however, almost instantly crumbled in the face of penetration of his new virgin holes. He could only gasp and writhe in pleasure underneath his sister, arching his back and bucking his hips, grinding his crotch against Sarah's slowly growing lower member. Sarah herself was barely holding on, her dicknipples straining within supremely soft, twitching canals that gushed with milk even as they milked her...

"Fffucking hell, slutboy..." Of course, the stimulation was more than enough to make her third cock hard enough to slide inside Adam's lower pussy with the slightest guidance from Sarah's hand. "This is... hmngh~..."

It was overwhelming. Fucking one pussy had been awesome, fucking three at once was almost enough to make Sarah cum from Adam's lustful writhing alone. As it was, she had to wait until his climax had ebbed somewhat, his orgiastic crys turning into mewling pleas for more, before she trusted herself enough to move. Of course, volume and intensity of Adam's moans instantly began to rise again, but as it turned out, the logistics of fucking his pussy nipples were much more complicated. Jutting from soft mounds, and pushing into soft mounds made a hard pounding impossible. And with how large Adam's titties were, and how desperately they sucked Sarah's dicknipples inside them, all she managed to do was bend and push them around inside her brother as she thrust into the snatch between his legs.

"Oh god yes, fuck me! You're so big, they're all so big!" Not that Adam minded, of course, nor did Sarah. She was much to occupied with not exploding into her slutboy, feeling both her breasts and her nuts churn mightily as they prepared her load. "Oh fuck, oh god, oh Sarah!"

"Shut up, slutboy, I'm trying. Not. To. CUM!" It was obviously a losing battle, but Sarah was fighting it with all her might. Gritting her teeth, she pounded away at her brother's cunt, powerful slaps of skin on skin filling the hallway as she drove Adam's voluminous ass into the floor again and again. With every thrust, their tits jiggled between them, bending Sarah's cocks every which way - and the well-endowed dickgirl felt pre begin to drool from all three of her tips. "Fuck, you feel so good!"

Panting and groaning, Sarah rammed her shaft into her brother again and again, throat tightening as she felt her climax approach, heart racing, cocks straining, but she wouldn't give up. She would manage another thrust, pound Adam one more time, make his tits jiggle and--

"FuuuuUGH~!" Three white-hot lances of pleasure speared through Sarah, and scalding hot jizz exploded from all three of her straining lances. Her hips bucked, her back arched, shot after shot of cum driving the breath from her lungs as she emptied herself into Adam. "Take it all, slutboyyy~!"

And no matter how much cum she pumped into her mewling slut, Sarah found that her brother could take all of it and still scream for more, beg to be filled. Wrapping arms and legs around Sarah, Adam pulled her tight against him, peppering her face with sloppy kisses, gasping and moaning as Adam felt her essence fill him. Finally, Sarah collapsed forwards onto him, squirting a few more drops of jizz into him, every thought wiped away by a climax with three times the strength.