After boarding the plane and being relieved that the third seat in their row turned out to be empty they settled down for the 9 hour 40 min flight to ...as Vegas. Angie was never sure she would ever get used to the stress of take-off as she white knuckled the seat arms. Bobby caringly reassured her that flying was far safer than trying to cross a normal road. When the plane levelled off Bobby whispered to Angie, are you still up for achieving as many sexual acts as possible, Angie saw that hint. She moved even lower down and popped one of my balls into her mouth, then the other, rolling her tongue around as Hailey grinded with me deep inside. I felt Danielle slip a finger against my underside vein, rubbing it lovingly every time her sister bounced upwards. "Almost there, keep going girls" Danielle cooed, watching my face and body starting to tense up a bit. With a tight pussy around my cock, a finger gliding along the underside, and my balls in Melanie's mouth, it was a miracle I had. She still had no panties on. I tried to rub her pussy or slide a finger in but the position was a bit awkward. Then the other one was moving my hand away and I had a feeling I knew what was going on behind me. I waited two minutes and then turned around and was not surprised to see her twin with two fingers inside her pussy, finger-fucking her. Do you guys do this all the time? I asked, but she ignored me like an opening pickup line at a bar. I got off of her and stood watching them, then. I decided to do a little detective work on my own. It was only about fifteen minutes from the shop to home and it was easy for me to take off at lunch and drive home to see if there was anything suspicious going on. The first couple of days there was no sign that things weren’t normal. I could peek in the side window and see through to the kitchen and I could see Sharise having her lunch by herself, so I assumed everything was okay. I parked in the back lane so she wouldn’t know I was around,.