The next morning we decided to head into the city area to do some shopping. Adele wanted some new sexy underwear ... she gave me the option of staying...at the house whilst she shopped. I declined because I suspected that the shopping trip may be very interesting - knowing how unpredictable and "out-there" that she could be.We scouted a few shops before she found one in an out of the way arcade. It seemed to have some very sexy gear, and she was keen to check out their small scraps of lace that. That left one remaining unit in the eight-unit townhouse structure.Dave had a feel about who would ultimately buy that unit, but in the meanwhile, the board of the Circle Cohousing Project took over ownership, and rented the place to members as guest quarters when they had visitors.One Saturday, the late morning temperature on the patio of the Circle was eighty-five degrees. Dave thought the bikinis would be in full force on that unique day. Dave realized he’d mis-thought when he took stock as. I then asked Kim to spread her legs wide apart so i could examine her, which i did my fingers pulled her pussy lips apart she was getting quite wet, my sister started to undress me by pulling off my teeshirt and she stood in front of me her fanny right up against my face i kissed her on her pussy lips and she laughed and said that was nice. My cock by now was bursting at the seams just dying to cum out. My sister reached round and down to my button and undid my flies and pulled my trousers to. ”“It’s about ... ” she hesitated. “Well, you know when I was kneeling ... ““When I was going into you from behind?”“Yes, then.”“Wasn’t it good for you?”“Oh, it was good. More than good. But I felt it was something very special for you. It was as though your ... as though you got bigger in my ... you know, inside me.” She broke off. “I’m sorry, you’d like me to use the words we used last night, but - ““Not necessarily. You’ve seen enough of Chris and me together to understand how plain talk.