” Barb smiled and looked at me with a devilish twinkle in her eye. “Do you still have that condom?” “Yup!” “Good. I was going to do you...in the car, but this is even better! Follow me.” She grabbed my hand and led me to her bedroom. “I want you to undress me.” I stood before her, unbuttoning her blouse slowly. With each button, more and more of her bosom came into view, making my cock twitch. She shrugged it off her shoulder, letting it float to the floor. I unbelted her skirt and it soon. I put my hand down between my thighs and adjusted the positioning of his cock. I lowered my body onto his vertical shaft I moaned softly as the tip pushed through my dripping wet hole. I felt his cock tighten as I raised and lowered my body accepting this massive erection into my clinging vagina. My breathing got heavier and more intense. I was actually going to cum in this unconventional position. More strokes followed along with my gasping for breath, I knew it was going to happen soon. "Cum. That and it certainly seemed to make Todd a lot more attentive around the house as well. He had never been so helpful in the past as he was now that we were “work out buddies” We talked more during the week then we had ever before, and through gentle prodding I learned that my sister was still working out with their group as she had started as well. I did manage to get from my son that Jennifer’s nipples were slightly visible, not as much as mine but that she apparently laid on their work out. 'Do you fuck them', I asked her outright one morning as we changed in the dressing room?She smiled but not her usual warm smile, kind of hardened smile, as if forced, 'I have fun with them, but none have been inside me', she answered firmly.That answer reverberated through my head for most of the day. Neither of us were virgins, we both knew that as we both had fucked the same guy one summer's day, taking turns on him and each of us seeing his cock deep inside the other, so what gives with her.