Alphamalg (Alphys X Amalgamates): The Completely Degenerate Series [DIRECTOR'S CUT]
Alphys sighed, burying her head in her arms and sobbing hopelessly on the floor while flowey literally drank the tears right off of her sad, sniveling face. "the end, bitches!" flowey laughed.
Giantess Toriel X Alphys: Incestual Apocalypse
"you know, from the whole flowey nonsense to his downright fucking repulsive incestual rape fetish, asriel's been quite a dick lately, to put it in the absolute nicest terms i can muster regarding said matter."
Giantess Toriel X Asriel: Motherly Fuckery
Asriel laughed, briefly turning into flowey so that he could burrow underneath toriel's eardrum and make his way through into her inner ear, where he then finally proceeded (as plain old asriel, of course) straight into her royal brain chamber!
Alphys VS Undyne
Nice cream guy sang yet again as the four of them ran past enormous living statues of omega flowey, endogeny, lemon bread, reaper bird, snowdrake's mother and father, and memoryhead...all with very angry looks in their eyes. "fuuu-hu-hu-hu-huuu!
I See Alphys, I See Francis (Alphys X Francis)
The fact that (first of all) most of the people in his universe, not to mention undertale's, already were technically animals, and (second of all) he had basically just exactly described the art style of the game that he was currently in, only with "omega flowey