Cephalopods, part 2
Both creatures continually laid dozens, then hundreds of egg sacs, forming a carpet of gelatinous masses.
Ander - Chapter 7, Subchapter 31
Banno was forcing his way through the opening, oozing through like some terrible bug crawling its way out of the shredded remains of its egg sac, but his left arm was still outside.
Euthes RP
About where a bladder would normally be. he quietly hoped that the cum would be low enough that it would just fill the space between all the eggs being deposited and stretching him out, as if he got too much too quickly it could easily overflow into his egg-sac
The Gates of Hell, Chapter 1, Vanguard
I had two sexual organs, my penis and the other which was used to help stimulate a female's egg sac and make sure all the eggs were fertilized.
Space Adventure pt. 2
Badoo, "we can't risk it... bu-" just as he was about to give the order, they all hear a shrill cry as they look over, seeing the queen detaching herself from the massive egg sac. cpt.
Desolation of Tiamat Pt. 5 of 5
Once that breakthrough made its impression on my mind, i thought of an entirely new way to package my egg sacs, namely inside the body of another carrier.
An Era Reborn
Even with all the resources they had at their disposal they had only been able to create enough that they believe would be enough to convert the empty spaces where the makovi's egg sacs used to be and regenerate them to produce the poisonous versions
Shattered Shards: Aethernauts
She cried out with delight as she felt the first egg slip from the slit of her egg sac, a small climax making her body quiver. her egg sack, and that of her mate, were now fully grown, as long as fortune was tall, but much thicker.
Space Adventure
Sometimes rather large, these queens usually stayed attached to an egg sac like an ant, laying eggs over and over, making millions of them over the course of their natural life span, which was undetermined.
Electric Majestic
What she was completely unprepared for was the sensation of _something_being passed through a dual-purpose organic tunnel with sessile feelers running along the length of the dragon's and connecting to an internal egg-sac, and which in turn deposited that
Lust Mages: In the Caves of the Changelings 2
She stopped and stared into a good dozen of them, some of them containing other prisoners, some of them containing nothing but the pulsing egg sacs that she had seen in the first room. nothing looked like the way out.
The Isles: Intro in to Basic Survival and Weirdness
I wondered if they were some sort of tropical slug or perhaps the egg sac of some exotic creature.