Eating mother-in-law’s juicy pussy while wife is sleeping

My wife’s horny mother-in-law wants me to fuck her juicy wet pussy. After my wife leaves the room, she shows me her wet dripping black pussy. Unable to resist, I start eating her juicy pussy and she shouts in pleasure. My tongue fucks her pussy as juices flow from it. Her precum smell makes me horny, so I fuck her pussy with my dick.