First the mother and the daughter swap, resulted in father fuck daughter body (mother inside) at moment of fucking.
then the father and son-in-law swap result in son-in-law body (father inside) fucks mother, father's body (son-in-law/daughter's husband) fucks daughter.
A mess to following.
This all happened because son-in-law wants to fuck wife's mother, father wants daughter to fuck him dom style. mother wants to breast feed sex for son-in-law daughter wants to fucks father. so dick god swap them up.