Sexyfish Stories

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7 Stories

Heroes of the Underground (Undyne X Sans) by Coolskellaton91
Heroes of the Underground (Undyne...by papyrus
Undyne and sans find themselves alive after the fallen human commits a genocide run. They follow the human seeking revenge. They are the only monsters in the underground...
shitbook(+Vents?) by ManhattanIsOverrated
shitbook(+Vents?)by Manhattan Is Overrated
yes idk who made the hawaii thing I put as the cover lmao Idk wtf I did for the tags
Socks Fat fish x Ollies egg by Lemony_Lem
Socks Fat fish x Ollies eggby Ada_
fat ass fish becomes the next ollie
Undyne X Female Reader: More Fish in the Sea by MaskRat
Undyne X Female Reader: More Fish...by Mask
Undyne meets you, the average Joe, walking through waterfall when out of nowhere, she blocks your path! What will you do? Cover Art by Mee!
Passion of Injustice - Undyne x (Female)Reader by rechtbrecher75
Passion of Injustice - Undyne x (F...by rechtbrecher75
You aren't supposed to be alive. You fell into the bowels of Mount Ebbot - you were supposed to have died, right? It doesn't matter, anyway. Someone very frightening is...