Wastelands-Chapter 30-The Dead City Part 3-The Biologist
At least with c-gas i can put a rubber mask over my face and be safe. nothing but an m1900 lbrc avenger could stop a landship if it saw you." "what's a landship?", nero asked.
Your Lips Are Sealed
Before avon could react, the rubber mask was shoved over his muzzle, silencing him. a hollow tube in the muzzle kept his jaw open as he felt around it with his tongue. "awrgh?" he mumbled through the gag.
The Submissive Dragon
In the middle, he found a receipt for the rubber mask he had placed on her earlier. he had estimated the size based on what size hat she wore. on the last page was a simple note: "i think i love her.
Buying the Farm 4 - Competing Offers
Jesse replied, his voice muffled from the heavy rubber mask and respirator. "we can talk after we get everyone loaded up." "well..."
The Slave Gaming League
The insides of the latex masks surrounding the gamers' head also had neural sensors which would come into play when the game started. the special chairs then went into active mode.
Within The Lab: Judgement
The edge of the rubber mask was placed firmly over his head and he felt it push just over the bridge of his nose while he tried to jerk back away from it.
A Pigtown Halloween
He expected that to be the entire suit, but he felt behind him a hood, which he pulled over his head, revealing itself to be a form fitting, rubber mask.
The Runt: Friendly Faces
He shook the rubber mask at tod, making it flop around comically. "you seemed a bit out of it, i noticed. everything okay in that little head of yours tod?"
The Broken Mirror
.  a rubber mask, with locking head-strap, there is padlock on it. there is air hose as well, with special valve, to let air go both ways, or one way. the outlet, with more valve, to allow air or block it.
Unplanned Obsolescence - Robolopunny vs Roboscorbunny
"i don't really have a gob, idiot, it's just servos under the rubber mask." "well then i'll cut ye open a damn gob to shove 'em down, do i need tae think o' everything around here?!" it looked like this one might be interesting.
Paired for Life
They lean forward and kiss deeply pressing their muzzles into each other all the while they begin to slip the latex masks on, their kiss only broken by the latex which only stops them for as long as it takes to adjust the masks to make a perfect fit
The Stable Wolf
mask and more still soaking the fur of his actual wolfen muzzle.