So are they your harem members you corrupting? Saw screenshots of them having sex with other males as well.
from what I remember the characters that have sex with other males during there corruption rout are thor with 3 scenes, Odin has one scene in her corruption and Freya has 2 scenes for her corruption rout.
if you turn the goddesses in to Mad goddesses in the Chaos Rout I believe Thor and Freya each have one more sex scene with another male.
some of the characters also have a lesbian scene.
from what I remember there are 2 main routs in the game the Law Route and the Chaos Route.
in the law rout you have individual endings for each of the 5 goddesses for both the Corrupt and non-Corrupt forms and an ending for the the 3 demon sisters Hel, Fenrir, and Jorm.
in the Chaos Route you different ending for Odin, a ending for Fena (your maid) and a harem ending with everyone.