I used to see her frequently but I couldn’t ask her for sex. After 3 years I took all the courage and asked her.When she was coming to our colony to...meet her uncle and aunty I was in the car I saw her and asked her to get in first she refused but later when I forced her she accepted it was 5 min drive I took all the courage and thought of asking her about having sex with her before I could ask her I noticed that her hand was on my hand I was shocked and asked her what she was up to I stopped. "Alright Cathy alright, you can practice some more" mummy replied in avoice tinged with worry. "We'll head you towards the hallway so you cantry walking there and you can grab onto the walls there if you start tolose your balance sweetheart. Annette, let's try and get her turned roundto the hallway direction. Now Cathy, Annette's going to let go of yourleft hand and I want you to try turning yourself around to your right."As my sister let go of my hand, I started to lift my left foot. . grinding his dick with my pussy... harder... faster... deeper, until his cock exploded. He had finished in enough time for us to clean up with a towel and have a drink and rest a little before Peter came back. We were both sitting in the room naked when Peter came in I asked him if he wanted a drink and he said Yes. So I got up and paraded by him naked to fix his drink. As I was standing there, I could feel the heat from his eyes on me. I handed him his drink with a wink and sat back down on. He played with my tits as we walked, and at the door he gave each nipple a final kiss. I gave his monster cock one last tug, then slipped it back into his slacks, zipped him up, and closed the door behind him.After closing the door behind Ben, I reached down and picked up my dress from the floor. As I stood back up, I was startled by a familiar voice saying “Wow. That was hot!”I almost fell over. Of course I recognized the voice immediately….it was my son, Shane, apparently unexpectedly.