I was so engrossed in pleasuring her, that I forgot all about the girls watching us perform. She had her legs draped over my shoulders, as I kept lic...ing her clit, my finger was busy fucking her pussy. When I had my finger well coated in her juices, and I started to rub it around her anal hole, and soon my finger was embedded into her hole up to my first knuckle.As my finger worked on her anal hole, and my tongue was licking her clitoris into a frenzy, she lost it and started to cum in bucket. I got dressed and came outside to have some breakfast.My sister served me breakfast and I was watching her actions and behavior and she behaved normally. Later that night I again heard moans of my sister. I got some courage and tried to open the door and to my surprise the door was open. I peeked inside and saw that she was masturbating by watching something on her phone. I came back to my room and thought that maybe she’s missing her husband and slept.The next day I noticed something different. She seemed pleased, and said,"ok!!" . That's when she explained the rules to me. Just in the ass. It was fine with me. I'd always wanted to do that! And to Britney!! I couldn't believe she still thought of herself as a pure innocent virgin girl... I held her hips and slowly entered her beautiful bottom. My dick is quite big, very thick, more than one girl had complained. But I entered easily. I was a little shocked I could barely feel the sides of her hole. Then I stared to slowly pump my. After all of the attempts on my life and the fact that there was still a bounty on my life, I made it a requirement.I also explained that the reason for the trip was to look at a secluded piece of property for a family getaway. It needed to be secluded enough that it would be nearly impossible for easy media access or anyone else that I did not want there.I asked if there was a way to fast track my group’s way through customs and if there was a way to do so or eliminate the customs stop all.