" She gave me a look of playful recognition at her conclusion and then laughed at her own humor.Crystal slid under my arm to join her sister in front ...f me; the jet sprays from the shower at her back. "Oh, wow! You've got a blue veiner. Did my sis do that to you in just those few seconds?"I responded with a bit of pant, "Sort of, plus your stimulation, and I thought about the three of us last night." As I talked, Crystal had started to kiss my chest and lick my nipples. I fondled one of her. I didn't say a word and when he got to my ass he massaged my cheeks softly, which was turning me on even more. Then when his hand went part way down my leg, I knew I should stop him, but I was way too horny for that by then. He began to slowly rub the inside of my thigh just above my hose then slowly moved up to my very wet pussy. By then he'd laid the letters aside and was intent on exploring me as I stood there, with my eyes closed, breathing hard. He was rubbing my pussy lips and then my. My cock began to soften and I quickly pulled out, then for Lisa's benefit Mike said, "I need to go help with Laura, but stay right there."Then he spoke the immortal words of Arnie the Terminator and said, "I'll be back!"With that, we laughed silently to each other, and left her there helpless and dripping and still tied up, just as we had done with Laura.I quickly and quietly cleaned up any of my spilled and spent seed that still clung to my cock shaft, then followed Mike out into the hallway. It fit there nicely because it was only about a half inch thick.About three weeks had passed since Cindy’s first day at the fort and Mike had kept his word and had refrained from hurting Cindy too badly and only called her names like slut and cunt every once in a while.It was a Sunday morning, when out of the blue Mike informed us that he and Cindy were going for a walk. He said that they would be back in a little while. Then he took her little hand in his and left us there with our mouths.