Stepmother interrupts son's solo session and assists in his climax, all while the father is present

The father was casually browsing the internet when he noticed his son's bedroom door ajar. He quietly walked in to investigate and caught his son pleasuring himself on his bed. He was taken aback by the sight, but his wife, also in the room, remained unfazed. She walked over, took his penis in her hand, and continued to masturbate him. The father tried to intervene, but the mother insisted, saying it was their business. She continued to pleasure her stepson until he reached climax, his cum splattering onto her back and onto the bed. Unfazed, she bent over and licked up every drop of his cum from the sheets, before turning to face the camera and smiling. The father, visibly shaken, looked on as the stepmother finished off the last bit of cum from her back, before the video ended.