Mother-in-law Mary Cosby has some sage advice for her daughter-in-law’s sex life.

During the Real Housewives of Salt Lake City reunion, Mary shared an interesting convo she had with her son Robert Jr’s wife, Alexiana. After hearing a lot of “noise” coming from her son and wife’s bedroom, Mary suspected her daughter-in-law was faking her orgasm and tell him the truth!

“I said, ‘Oh my gosh.’ I said, ‘Don’t make my son think he’s better than he is. Stop doing all that. Stop playing with him. Stop it.’ Tell him the truth,” she recalled.

Mary also said she’s skeptical of her son’s marriage and will believe it when she sees the paperwork!

#DishFam, did Mary overstep her parental boundaries, or is this a motherly thing to do?