Jade Bleu 
A Werewolf Bred Me! #1: Snow Bunny [EPUB ebook] 

He filled me with his seed in a snowy cave!
 
An avalanche on a ski slope trapped me in a cave with a large, powerful man. Or was he something else? My fertile state aroused his supernatural senses, and he revealed the truth—he was a werewolf, and his imperative right then wasn’t just to survive, but to take me rough and unprotected, breeding me until I screamed.
An erotic short featuring werewolf seed and rough, raw, unprotected creampie with a stranger in the snow.