I just was looking for just a few seconds from the hallway when my sister comes out of her bedroom. She presses her hand up against my semi-erect coc... leans forward and whispers into my ear, "like what you see?” She then proceeds past me into my mother's room and closes the door. My sister teasing me by pressing her hand to my cock and whispering into my ear was very effective in getting me aroused. I couldn't stop thinking about what she just did. I ended up downstairs watching TV with an. I had a few ropes of cum drip across her face with more landing inside her mouth. Once we were done, Grace went to the bathroom to shower. As Marcus and I layed in the bed with clothes on reminiscing on what we had just experienced together as best friends for the first time. Grace returned from the shower and layed in the bed with us. Grace and I were on the outsides and Marcus was in the middle. Grace fell asleep quickly as I knew Marcus and I had made her very tired. We all layed in the bed. Moving slowly down and across her back, caressing every inch of her body with my mouth and tongue. I could hear her moaning with pleasure. I continued down across that lovely ass down the back of her legs then started gently sucking on the back part of her knee just above the calf. "Oh my god that feels good" After a few minutes of that I started to move down her calf to her Achilles heel and sucked on that for a bit. "Mmmmmm that feels good too" I had her turn over then started to suck on the. While I rotated my hips to continue a very well fucking motion. She used the vib on her clit. With the heat from the water, me in her ass, & the vib. Ari came rather quickly. Her ass constricted so tightly around my cock. I almost came then. I held on and made her come very violently again. I came just as she was coming down from her ecstasy. She came again but not as violently from me filling her ass up. She let me slip out of her ass. And we climbed out of the tube. I proceeded to dry her.