He finds his wife having sex and he is told to watch while jerking off his cock

A man is holding on tightly onto someone's wife as they kiss and caress each other while entering a room. He lifted her skirt as he roughly grabbed her bouncy ass before they led each other to the bed, where the woman started to ride his huge cock massively. The woman's husband catches them red-handed, and the woman tells him to start jerking off as he watches them.