On our front porch – when I got my pants back on and got to the door – there was a woman I didn't know. She was black, which was odd enough in our...neighborhood, but that didn't bother me even slightly because she was smoking hot. She was kind of medium height and medium thick – not fat but not skinny either. She was wearing this really ugly color dress with a v-neck that looked like her tits would fall out any second and she totally was not wearing a bra. She reached over and rang the bell. I promise we will stay in my room and leave you two lovers alone tonight,” exclaimed Sis. “Is dinner ready?” I replied, “Yes, it is. It’s a good thing I made plenty. Let’s eat before it gets cold.” With that, we all went to the kitchen and ate dinner. Afterward, we sat for a while and drank a couple bottles of wine before going to our respective bedrooms. As Bob took off his clothes, I took off my short shorts and blouse. I took a sheer negligee from my closet and pulled it on over my head. I. He first rubbed her back and then down her legs and as he went higher I could see him rub in-between her legs and was quite obviously rubbing her pussy and judging by the smile on her face she as loving it. She lofted up and said something to the other guy he moved over and sat on the other side and started rubbing her back and legs as well, then she turned over and topless the 2 guys with smiles on their faces started rubbing lotion on her breasts. I could see the boys getting hot when she. I don't know if she was expecting a reaction from me, but, like any teenager, I showed my appreciation with a return of sexual arousal, my penis thickening slowly. I'm pretty sure Mom saw my reaction as she paused, the hem of her T-shirt hovering at her waist.When she resumed removing it I again admired the gentle curve of her slender thighs and how her body swelled around her bottom, narrowing to her hips. I watched as her stomach came into view with its slight convex swell just below her.