Alien Pain
The ancient ones had grown great hives from their bodies, becoming one, stretching themselves with it, and spreading great egg-sacs from their body.
Wolf Spider 6
The spider hadn’t had time to lay her unfertilized egg sacs. they lay dormant within her. they rattle around in her body, even as the head of his hard cock thrusts up into her womb.
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.
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
Amok Time Lord, Part 2
"they-- ahh, aaah-- they reach inside the female, a-aa-and wrap round her egg sac, and-- and it... oh, oh, oh!
Ander - Chapter 5, Subchapter 49
It was like watching a giant, venomous spider crawling out of a pulsating egg sac... "if you can walk..." she continued, hoping that no one had noticed her brief stutter, "...then you go in the middle, too.
The Wonderful Tide
Skin, biting and sucking greedily at him, twisting and tugging at him, squeezing him, _wanting_ him – the first egg forces its way past his teeth and over the weight of his tongue, and he chokes anew as he rapidly blinks the tears away and looks at the egg sac
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
Our New Queen
His ass was gone- it was taken up by that huge white...he wasn't even sure if it was a womb, an egg sac, an ovipositor, or what it was, it just took up the lower half of his body.
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.
Crete: Part Two
He pulled out what looked like a massive spider's egg sac. it glittered faint silver under the torch light. "with this thread, we can find our way to any of the labyrinth's servants' entrances. we must find the one nearest the wharf.
'Lordy, The Rings!' or 'Geno and the Spider'
The bundle that it was working on appeared to be a cocoon, or an egg sac, covered almost completely from end to end with snowy silk.