Post partum, young woman finds out that her father has been having affair with her and then sleeps with him

A girl of 18 when she catches her dad with his mistress in the garage. Truancy, she comes over, they have wild sex where she basically chokes him and they both do anal and oral. Especially in the scene in which the covetous of the old man for his young daughter overpowers him and he dumps a gooey load on her.