found out

I am a 48 yr old married male, one of our stepdaughters live with us. I just recently discovered that my stepdaughter listens to her mom and I having sex thru our bedroom door. I have caught her three times so far as I intentionally went to get a drink and very quietly jerked the bedroom door open and there she stood only in panties with one hand shoved down in them. she looked shocked and ran to her room and shut the door each time.

now here is where I need the advice, the sex that my wife and I have is primarily with me in a little pink chastity cage and a sexy little pair of pink panties that my wife picked out for me and she has me bent over the bed and she is fucking me with her big strap on while telling me what a little sissy I am and how hot it makes her that I want to be fucked like her. I am talking about maybe only one out of every ten times we have sex is it with me fucking her and her doing the screaming, it is always me and she makes me beg her for her cock and makes me beg her to fuck me and make me cum, our bedroom is pretty vocal and extremely erotic and mostly very blunt words used as it really turns her on to humiliate me verbally about being her little cock loving sissy..

I cant help but wonder just what all my stepdaughter has heard? the fucking and the screaming no doubt that she has heard me beg her mom to fuck me with her cock. but I wonder does she know or has she heard my wife refer to my little pink chastity cage and my little pink panties that she makes me wear? I guess she has figured out that her mom is fucking me with a strap on more than I fuck her mom, is this what is turning her on and making her want to listen outside the door and does she like getting herself off listening to me moan and beg for her mom to fuck me and to hear her mom call me her little cock loving sissy?

should I talk to my stepdaughter about it?

If she is of age, make a video showing everything your wife and you do, and make sure it is left where it can be found. She will love it, and probably show it to some of her friends.