She began rubbing her pussy along my thigh and I realized she had nothing on.I moved slowly down to her nipples. Taking one in my mouth, I sucked on i... through her dress. Her skirt was now up at her waist exposing her to the warm, setting sun.Stacey was now moaning loudly and moving faster on my thigh as my mouth moved to one nipple. My fingers went to the other and I pinched and teased it to stiffness. The one in my mouth with tongue swirling over it instantly became stiff.She pulled my head. ”. I gave her a look of wondering, waiting for her to continue. “She wants to….she wants your….” she paused, collecting herself, “She wants you to fuck her….”.I didn’t know what to say back to her. I was shocked that her sweet, innocent little sister was blackmailing her to get fucked. “Wha….why….huh?” I stuttered. “What did you tell her?”She waited a minute before answering me. “I may have told her that I’d ask you.”. The second she finished speaking, she flinched, as if she expected me to hit. I wasn't stimulating my genital region, I just had my hands resting on my chest feeling my chest rise and fall with my breathing. I noticed my breath would shutter at times, as I was very aroused. I also was lying in various positions on the bed, sometimes with my legs bent over the side, sometimes I would fall on the bed backwards or forwards.I found a piece of old cloth pajama belt lying on the floor, it was just big enough for what I wanted it for, to tie a knot in it so that I could get. It´s a nice and old house which has rooms with a big hight. There are 6 apartments in this house.It has his own janitor who keeps all perfect and lives in one of this flats,...a very nice clean and good looking neighbourhood. I´m proud to live in such part of the city.I never forget the day i saw the janitor´s son the first time, it was not my life changing day with him but forever in my memories.I was packing my stuff from my car to my flat, moved all by my own (kind happy of that) and walked.