The eggs hatch, and the party gets bigger.

Laying on her back with her legs spread open by two of Peter's clawed hands, MJ moaned and wailed as his cock thrust deep and hard into her pussy. Her belly and breasts quaking over and over again with each thrust into her womb whi8le her thighs and ass wobbled from the aggressive impacts. There was no romance in the act, no gentle hand-holding or soft caresses, just pure fornication from the bloated, massive couple rutting like a pair of animals in heat. And they both loved every second of it! The way their bellies would collide, the way her tits would smack at her chin, the way his girth would shake with his thrusts, it was intoxicating the bigger they got, the more feral they became. Even now the seven of them had been reduced to a group of grunting, salacious animals, with Miles roaring out his release as he flooded Cindy's womb and Peter doing the same seconds later into MJ

How could it get any better?

Unseen by the group of venom empowered arachnids, their first clutch of eggs were going through changes. In the time they had been gone from the nest turning Miles, Anya and Jessica into the multi-limbed monsters they were too, their eggs had been growing, developing. Like a crop of ripening fruit, they grew over the span of those hours. Doubling in size each hour until they were the size they were now. When the females of the pack had laid them, they eggs were a solid, spherical orb, pitch black and the size of beach balls. Now? Pulsing with activity over their fleshy surfaces, the van sized cocoons took up the entire floor where they had been laid, pressed up against each others and the walls in their desire for more space to develop.

With another roar of orgasmic release from one of the female creature from the floor above, one of the cocoons split open with a black, clawed hand reaching out, followed by another pulling the cocoon open to pull the rest of itself free. Then another opened, and another. Fully formed and developed progeny scurried out of their shells and scurried around the space, hissing and chittering their fangs at each other like swarms of vermin before another roar of release above their multi-eyes heads made them all look up to the next floor and the single opening that led up.

Pushing Peter against the wall and spreading his legs wide, MJ purred and licked her lips as she held his erection in three of her hands, licking up his shaft before wrapping her lips around the head and started sucking him off. Peter had already came hard into her twice and even Miles had a go with her earlier. Even now she could feel their seed swimming around in her womb creating a new clutch of eggs to bud and grow, the anticipation was exciting, as was her hunger. Her appetite was already building to accommodate what she would need to bear another clutch. Groping Peter's balls, she coaxed them to churn more seed for her to guzzle down when the time was right. Then suddenly her fours eyes went wide when she felt a cock spear into her still dripping pussy from behind. Hard and aggressive it thrust hard into her and caused her to suck Peter all the way to the hilt. The aggression behind it made her eyes flutter and twerk her fat hips to coax this new lover to go deeper.

Feeling Peter flood her stomach with his cum, MJ swallowed all of it eagerly so she could separate from him and look over her shoulder to see Miles plowing her from behind. But when she did and licked Peter's shaft salaciously to bring him back to hardness, she looked behind her and gasped. It wasn't Miles. She didn't recognize him at all. She looked like Peter or Miles but lacked the spider motif of their chest and guts. Going stiff, the male venom growled and gurgled with lust as he reached his limit and pumped her womb full of seed, separating from her to stomp over to the others and spear into a recuperating Gwen after she was claimed by another. It was only then that MJ realized they were surrounded by over two dozen of their now adult children. Before she could get off the ground on her many hands and knees, another male grabbed hold of her fat ass and thrust into her pussy with his cock. The hissing, overweight brute grunted and snorted like a boar, wrapping a fat leg around her thigh to lock him to her as he ground and thrust as hard as his predecessor. Not long after, the beast went stiff and gurgling out a roar of his own orgasm, flooding MJ's womb and causing it to swell.

"So unbridled... So aggressive... Who might YOU be?" She asked mentally, squeezing her inner muscles and making him hard again for a second round. But no matter what she asked, there was no reply. Looking deeper, she found the brute and the rest of his siblings did not have a single thought in their heads. Only base urges and drive. Feeling him thrust again, MJ blinked at the realization, but smiled eagerly when she felt he was even more enthusiastic to mate with her. As was she. Turning her attention back to Peter, she found one of her daughters straddling his waist and wailing out in bliss as she watched his cock stretch her virgin folds to capacity to occupy her womb.

"So much! SO MUCH!" Screamed Anya telepathically while she was laid on her back and mounted into by one of the new venoms, while two females licked and sucked at her tits.

"More! Don't stop!" Moaned Gwen and Cindy together, the two making out as they were pressed together while their own lovers claimed them from behind, grabbing handfuls of their fat rears to keep leverage.

MJ could only chuckle at the waves of pleasure radiating off her friends and lovers... Until she got the shock of her life when a second cock thrust into her pussy along with her current lover. Looking over her shoulder again she found two of them taking turns thrusting into her, fighting over her for the moment to cum into her. "They... They're FIGHTING over me..." The concept made the female venom drool in arousal as she felt them thrust into her over and over again, she almost didn't even keep awake when they both came into her at the same time.