So, she asked Rob to watch us that night. Rob was also a neighborhood teen that lived nearby. Rob was about 17 years old and this would be his first t...me babysitting us. Rob was about 5'9", slim built, long black hair. My mother always said he was a cutie but I never thought anything of it...Heck, I was only 5 yrs old!During that evening, everything went well. Rob kept us busy playing games, making us snacks etc...It was a lot of fun. My twin and I usually had a bath every night, so we asked. “I've been thinking about it.”“Play does not imply ownership.” She must have understood my fear. I did not wish to leave my Mistress, even if there was no way to even guess when I might see her again. “And I would never tell you to end your relationship with Sheila.”“Yes, Miss.” And I found myself snapping to attention, shoulders back, head respectfully down but my posture erect. “I would enjoy it if you chose to make use of me.”“Excellent.” Her arm twitched and I heard the snap of a riding. It was my brothers 18th birthday that it all started. Our parents wanted toretire in Arizona and Dillon wanted to stay in California. I had my ownhouse I had bought when I was 20 out by the beach away from mostlyeveryone. The nearest neighbor was about a quarter mile away. I loved thathouse and I got a big mortgage that went with that house. My brother askedif he could live with me until he found a place on his own so that ourparents could move and retire. Of course I agreed to that I wanted. I moved down and flicked my tongue over her opening, gathering some cum, moving up her body and sharing it with her. “Monica, roll over please.” She looked up at me, wondering why I wanted her to roll onto her stomach. I said “Please, I want to touch your ass. When my hand brushed over it earlier when I helped you dust off… I had this electrical charge rush though my body and… and please just roll over.” As she rolled over, I got the first real look at this big plump booty. I sighed very.