Being sneaky doesn't work out

[MisterWolf26]

Mom is engrossed in a movie. Grandma is watching too. Daughter and boyfriend are behind them on the couch, covered with a blanket.

Its a lot like the backseat mom stories.

Theres flirting and teasing and a lot of arousal until finally there's penetration. Except young participants forget where they are and after they come to their senses all eyes are on them.

 

[Brandnewbuddy]

Lol, I love it. Honestly, I imagine them finishing and Grandma just starts applauding

 

[Rob_Royale]

I'd go with grandma sees but tells no one. Instead she starts to arrange for opportunities for the young couple to be alone where grandma can watch secretly. Maybe at 65 years old she has body/age image issues and it's up to the young couple to seduce her.