Jade Bleu 
Claimed by a Sea God: A First-Time Sacrifice Story (Claimed by a God, #1) [EPUB ebook] 

He pulled me down to the depths and claimed me rough!
 I felt drawn to the ocean that day, and despite warnings about dangerous undertow, I plunged underwater and was taken by a god of the sea. Laying me on a watery altar, he sacrificed my virginity in front of the other gods until I screamed with pleasure.
An erotic short featuring a sexy sea god, first time deflowering, exhibition, oral, and salty creampie.