@kikimaru024 Part 1: Villain possesses Mom, masturbates, ejects Mom's persoanlity and then reabsorbs it, effectivley making herself replace Mom entirely. She then fucks her crossdressing son.
Part 2: Mom jumps into the Neighor's body, fucks the son, then stuffs the neighbor into the son's body. She then fucks the Neighbor (who is in the son's body), which ejects the son's personality, which she stuffs into the Mom's body.
So now VillainMom has become the Neighbor, Neighbor has become the Son, and Son has become the Mom. And that's where part 3 picks up. Simple, right? 🤣