So, I did the only thing I knew to do.
After her father dies, her mother physically, verbally, and sexually abuses Precious until she manages to escape her abusive household.
Paul Devildis develops an incestuous attraction towards his daughter Kathy.
The revelation in Season Three of their mother Penelope having been adopted and groomed by the Blossoms to be Clifford's bride suggests an intentional manipulation by the Blossom family.