I felt the cum starting to build and my breath quickened and Karen told me to open my mouth. Susie told Heather to aim my cock at my tongue and I sho...t the largest load of my life directly into my mouth. Karen climbed off me and said that Heather and I could take showers. I asked where the bathroom was, then took Heather by the hand and led her to the bathroom. I locked the door, pulled Heather to me and kissed her. We made out for a couple of minutes then got into the shower. I was behind. Here I had 3 teenagers who had been incredibly intimate with each other and of course I had to remember that I had been heavily involved myself, had I broken the trust between teacher and students? I was after all twice their age they are all 16 I’m 35! Would I be in serious trouble if any of them told their parents?To be honest I didn’t care they are all legally old enough to be involved in sexual activity, I had jokingly said to the girls that the boy owed them a favour and suggested that he. Then, we swap the contents of the booths. For safety reasons, if there’s any significant mass in the ‘receiving’ booth, nothing will happen. Third, does the system require both ‘send’ and ‘receive’ booths? No. The process works exactly the same in both directions. Any booth can send or receive from any other booth, with certain limitations that we’ll get to later. Fourth, how long does the movement take? As you all know, nothing with mass can move faster than light. But this device eliminates. “I'm sure I heard someone say something about my arse!”Joan said.It was my cue.I turned both women face down and went down to their lovely bums.I decided my mother in law should have it first and I went straight for her arsehole with my tongue. She was so wet, my tongue slid in easily and she lay writhing on the bed as for the first time in her 61 years, she had someone licking out her arse.“Oh God that is amazing,” she managed to blurt out between gasps and groans.Kath was next and I was soon.