Karen gulped down another thick, buttery load of Leo's sperm, her son clutching her scalp as his cock pulsed and spurted in his mother's mouth. Jacky lay on the bed, dozing peacefully as his own load dripped down the wall, its surface already hardening into a yellowish cementlike resin.
Her sons had been busy the past few days. There were stains, splotches and puddles of cum all over the apartment, crusting in corners and coating the walls. The carpet was almost completely obscured, covered in rippling, textured resin. Most of the furniture was now glued into place, feet and legs festooned with thick frozen dribbles of alien cum like melted beeswax. It smelled musky and robust even when dry, giving the whole apartment a sensually wild odour, like the den of an animal.
Leo groaned and relaxed on the couch as his softening cock slipped from his mother's lips. Karen stood, wiping her mouth, and burped, stroking her belly. She'd quickly learned that the boys' sperm was rich in calories, protein and fat, and she found she'd developed a taste for it. It had definitely impacted her figure, taking her from curvaceous to full-figured, resulting in her body developing a sensuously rounded pear shape, but she didn't lack for muscle. Beneath her soft fatty tissue were sinews and muscles like steel cables. She seemed to have gained some height as well, making her almost 400lbs. She wore it well, though.
Lyta was snacking too, having made herself a roast chicken. She eagerly devoured it, drumsticks, wings and all, her sawlike teeth grinding the bones to paste and licking the grease from her fingers. She'd gotten larger too, thanks to her brothers' cum, blossoming into a woman with the proportions of a plus-sized lingerie model.
Karen patted her son's head and went into her office, intent on finishing her new Power Girl costume. The suit had clearly become too small, so she decided to stitch together a few of her old ones to make one that would fit. Mother or not, she was still Power Girl. She passed by the bathroom and realized that she hadn't used the toilet in almost a week. Her metabolism must have reached perfect equilibrium, converting everything she'd consumed into usable resources.
Her head bumped the doorframe as she went into her office, and something just snapped inside her. With a feral roar, Karen tore into the wall, smashing and splintering the drywall with her claws, burning the wooden frame down with heat vision until all that was left was a pile of crumbled plaster and smoking cinders. Leo and Jacky looked up in amazement at the sight of their mother, her breasts heaving as she stood in the cloud of dust that used to be a wall.
"Mommy, are you okay?" Lyta asked, coming up behind Karen and squeezing her shoulder.
"Yeah, baby, I just..." Karen shook her head. "I'm starting to hate these walls. Our... home looks better this way." She had almost called it a "nest" but caught herself. She quickly finished her new costume and reverted back to her human shape, pulling the reinforced garment on. A corsetlike framework of metal struts moulded her torso into an almost cartoonishly-proportioned shape, but at least she resembled her old self.