Seeking Game where the son falls in love with the father's girlfriend/wife/fiancée

[Knittel]

I'm looking for a game where there are relationships between you and your father's girlfriend or wife.

 

[Bev_]

I'm assuming you're not interested in games in which that woman is also your mother, so:
Falling in love:
Sisterly Lust
Motherless

Games that have h-scenes with them, but I wouldn't call it love:
Tales from the unending void
Rick and Morty: Another way home

 

[hysepReC]

Secret Summer
The Mound of the Termites (has the abandoned tag but it's still worth playing, there's a decent amount of content here)