LFAS fish(?)man kidnaps human woman, keeps her underwater and oxygenated with his cum

[jeddadiahhock]

at some point (i think prior to 2020) i read a (4-5 page?) story that im pretty sure was here, about some kind of sea monster man who kidnaps a woman and keeps her prisoner under the sea, and she has to consume his cum to just barely stay oxygenated and not drown, and it was like that for maybe 2-3 pages; i think it ended with him seemingly letting her go, but then as she gets onto the beach and thinks she's escaped, she is somehow turned into a sea monster woman who needs to breathe water and he turns into a human man, and he continues keeping her prisoner on land with her in some small body of water, maybe a pool

ive tried SO hard to find it through search and tag functions, and on google, but i just don't know how to find it; if someone could lead me to it id be so thankful