Inheritance
"out here, sir, word from the house is there's a pregnant mare that's been entered into the auction."
The Ritual Begins
Her abdomen arched down like that of a pregnant mare by now, jiggling with every thrust - and while she could not see it, inside of her, something else was being stretched.
Softie's Stabled Relationship
A blush filled his face as he had the very humiliating shape of a pregnant mare or cow so late in their gestation that they were about to whelp.
Sand, Surf, and Sky
A very heavily pregnant mare who was being doted on by her loving husband. they were very much in love and were surely enjoying the last few weeks before their firstborn would enter their lives.
Bedlam's Requiem
Although imitating a pregnant mare was probably not the better choice.
27 Ounces: A Story of Eight And One Half Ponies
Conversion changed a pregnant woman into a pregnant mare, and the child would be equestrian too. and this was a problem for her. her baby didn't get a choice. he would be a colt from birth. he wouldn't even know what it was like to be human.