Apparently the ... shells, I'll call them ... they remain biologically active, they're living tissue. I asked their queen, the dissolution is natural ...and occurs only when the fledgling is physiologically ready for birth. Then the dissolved shell serves as the newborn's first food."For their part the aliens were absorbing all information presented to them voraciously. Their human "professors" found themselves having to develop structured curricula to keep their teaching rationally linear.. As he did I licked down his spine and then peeled down his undies.I took them off his feet and said “Kneel up” as he did I spread his buttocks and licked his ass, he groaned. Reaching into my jeans I took out a condom and rolled it on my hard on, I then went into the bathroom and soaped up my hands, spreading the soap over myself I wiped my hands and re-entered his room, he was in the same position.“Kneel on all fours” as he did I guided my cock to the entrance of his bum, as I ran myself over. I loved the feel and touch of each cock. I sucked as long and as hard as required, hoping to take a load of semen and swallow it. I felt a sense of accomplishment as each cock plunged into my welcoming hole. I was in a frenzy. I don't believe there was any physical pleasure, but for the "opening of the door" as the cock was admitted. I was fully overcome mentally, as I had been with the "sounds", but in a totally different and salacious way.It eventually dawned on me that so far I had not cum. I..." Hey, relax! That's the standard wisecrack I get from the physiotherapist. Just find Marsha and tell her where I am." I'll do it, I promise. I'll go now and leave you in peace. I'll be back tomorrow."David was in a conflicted mood as he watched her leave. He knew a bit about her problems and normally he would have been sympathetic. However, nobody told her to drive drunk and make phone calls. The cops had found the phone on the floor of her car, and the provider had verified that it had.