My step-daughter paraded in front of me showing off her new lingerie. Highly inappropriate I told her but that did no persuade her. She asked where my wife was and I said she was out for a couple of hours with friends. Then my step-daughter dropped a bombshell. She asked have I ever wanted to fuck her. Well, of course I have fantasised about it cos she is hot with a perfect body but it was never going to happen.. I thought. It seems she has wanted to fuck me too so she did me there and then in our living room. When she saw my big cock she said she knew now why my wife married her and she wanted in her tight, young pussy. She fucked me in several different position then did something my wife would never do. She wanted me to cum in her mouth. Wow, what a cum slut she is. And living with us all this time