Milk Egg
In another world, a lineage of monotremes found an agreeable solution. the so called cybelotheres, these animals evolved from an obdurodon like ancestor that began to forage at sea.
Yankee Ass
The monotreme perked at this, "came all this way to sit on my dick?" he chuckled, grinding his arousal to that lubed up backside.
Another World's Hell Creek
Plesiornythorhynchus creeki: a freshwater marine monotreme. didelphomachairus burni: a cougar sized deltatheroidean with saber teeth. arborodelta horribilis: an arboreal deltatheroidean.
Michael and Amanda, Chapter 4
In other words, if a placental male and a monotreme female attempt to become pregnant, the monotreme dna would attempt to create an egg. however, the placental dna of the father would attempt to override the monotreme dna and create a fetus.
Swimming lessons
The monotremate didn't answered, too busy licking and sucking. the marsupial didn't last very long, and his first orgasm hit him, dry except for some drops that could as easily be precum or pee. either way, irwin didn't mind.
Code Drop: Reception
._ the muttering monotreme glanced askew at him, crossing his arms over his pot belly. "you need somethin'?" "i wish i had the superpower to smell electricity." the golden offered a wag. a clucky laugh. "that's outside my expertise, bub."
Come With Us To Gomorrah, Opportunity Knocks But Once
A monotreme, maybe; like a platypus. a good deal of the people dying in my mind, would probably view me as hideous--a monster. it didn't matter; to me, it was all equally monstrous, just more or less familiar.
Steven And Amethyst: A Summer Of Lessons
They weere having lots of fun because of their extremely romantic sentiment, they were naked and rubbing their three arms all over their body, strocking their gigantic five meter long external penile organ with eight heads like a monotreme's or any non-therian
Lu and Evolution
Made some monotremes, lay eggs like ed's reptiles. some marsupials, live birth but keep em close; make a pouch. looks cute, i think. rest have a part inside to feed kids.
BioHist2
He didn't know about lizards, birds, monotremes, or marsupials either; in fact he didn't know anything about taxonomy or animal structure. he just imitated mistress mel's use of groupaka mammal without understanding what he was doing.
Cocks of the world: St Bernard, Emu, Platypus, Saltwater Crocodile
After finishing his release, the platypus began thrusting again, and several minutes later both males ejaculated, the two remaining heads on the monotremate's penis releasing their load this time.
Daisy and Boss: 10 - Hot On the Scent of Trouble
She planted a fist on her hip as the nearsighted monotreme scurried to gather his plant, scooping the dirt that had spilled back into the pot with a stack of papers he was also carrying in his webbed fingers.