..", but as I started to walk past her, she grabbed me, turned me, struggled harder than I would have thought she could for a moment to unbutton and u...zip my military style cargo pants, which left my cock just dangling exposed. I often just "free-balled", as it's more comfortable, so I didn't even have boxers on. Before I could do anything, she grabbed my ass hard and pulled me towards her, and with her right hand, grabbed my half-hard cock and just swallowed it down to my balls."Holy fuck!", I. "If you were, I would wonder if there was somewhere private that we could go to get better acquainted," replied Marcie."I could show you my bedroom if you like," said Richard licking his lips."I think that I would like that very much," replied Marcie with another look at Richard's bulge-filled swimming trunks.Marcie was wearing a white blouse and black bra and rather tight black trousers and Richard got his first view of just how tight when Marcie turned to go back towards the house and he saw. "You're going to take it all this time, baby girl," he moaned.I put my hand on his to try and remind him that it was his roommate he was playing with, not another one of his sluts, but when I looked up at him I didn't see what I was expecting to see. Instead of the John from the previous two evenings, whose eyes were clinched shut as he tried to block out the identity of his fellater, he was staring plainly down at me. "That's right, you're going to take every last inch this time." I fought my. I ended up having sex with Carrie multiple times those first weeks, exploring every position we could conceive of, and a few we thought we invented on the spot. Since we all decided that vaginal intercourse between brother and sister was a little too risky, and none of us was old enough to buy condoms in Georgia (it was the 70s), I got to learn the mysteries of cunnilingus first with Maggie.That turned into Maggie and Carrie learning to please each other, on the one Saturday when I was sick,.