Stuck in a womb sack with multiple embryos

Jack floated down the penis tube carried by the current, he tried to flail his arms to swim but he wasn't strong enough to stabilize himself. By the time he dropped into one of the filling womb sacks he could see all four eggs inside seemingly already fertilized. This meant he would have to wait for them to grow a bit before he would be consumed somehow by them. A truly agonising fate which left him paralyzed with fear.

He was still spewing new sperm people one by one from his ass all of whom would be sorely disappointed to find they were also too late. Floating in a full womb of cum his penis was mounted by a Futa sperm and he was filled over and over again like before watching the fertilized ovum's attach to the walls of the womb sack. His ass never letting up making more and more sissy cells and futanari sperms for the baby's to consume as protein or whatever. After what must have been a month or few months so the baby's had grown enough to have gained mouths and genitals Jack still full and producing with no real control over where he floated drifted to close to one and was sucked unconsciously into its mouth. Fearing the end and accepting his death he felt as the stomach of the child burned and dissolved his body till there was nothing left but consciousness. After this all he could do was wait till this respawn Kelly had talked about happened but where would it take place.