.. should we add more privacy between us?" Brad asked, with a deep breath, after his long winded response. "Oh." Cassie simply replied, thinking about...a more in depth response. "I never really thought it'd become an issue. Like, being in such a small house, it became habit. Like, we know what we both look like naked. Never thought anything was wrong with that." She sadly added. "Well it's not 'just' that.." Brad said, almost in a whisper."What do you mean?" Cassie turned and asked him. "Like,. Ben was only half listening to her. He was staring at her tits trying to tell if her nipples were poking through the fabric of the lab coat. He had answered an ad that said test subjects were needed for a human sexuality study, and he figured he could use the fifty dollars that was offered."Yeah, I understand," Ben, answered, looking up to the pretty face that was above the tits. The woman was about 30, shoulder length blonde hair that framed a beautiful face. She was tall and slender and. My mother just swallowed some of my own pre-cum. I just couldn’t comprehend the situation. She then took her left hand and wrapped it around my cock.“You’re pretty thick too. Ooh, and nice shaven balls too” she said as she cupped my balls in her right hand. “You’ve got quite the nice cock Doug.” “Well… um… thanks I guess” I said nervously. “I think I know how I can help you.” “How?” I asked. “Like this” she said and placed her lips around the tip of my cock and began moving up and down my. James watched as Marvin thrust his cock into Susie’s arse; he watched the cock almost come out completely, before it was hidden inside again, by one fast, short thrust. The sheer strength of his friend held her in his arms at the waist while he pushed his cock hard into her backside. James watched as Susie moved to fuck him back but her thrusts were useless from the position that she was being held in. It was not long before James started to witness the convulsions that he knew was associated.