She had tiny hands and a really cute small voice that was almost squeaky. Her skin was a light bronze, almost a permanent tan if you will. I loved the...way she looked. As we neared our next birthdays, we began playing a new game. I was playing a photographer and she would almost always want to be my model. So we would do "photo shoots". A little weird for a 16 year old like me to be playing, but hey I was spending time with my sister so who cares? She would dress up in "fancy clothes" and model. Once inside her again, Mark reached up and undid the latch on her bra, freeing her breasts and already erect nipples. He grabbed at them and squeezed them, pinching her nipples. He then moved his hand down her sides to her hips. Mark took a strong hold and starting to push her hips front to back, grinding her pussy and clit on his cock.My wife responded, announcing she was close to cumming. A few more back and forth grinds and my wife was having her first orgasm. Mark moved his hands again, now. Don't tell them it was my suggestion.' She beckoned me towards her then pulled my head down and kissed me.'You are something else. I feel another invitation creeping up, but not just yet. You've turned this into a happier house, Luke, and I don't know how or why.' She let go of me and I retreated, feeling pleased.When I got back to my room Trudi was lounging in an armchair leafing through a book. She looked up as I entered.'I had to something to get your attention. When you focus you focus,. "Fill me, papa! We all come together!" Oh yeah, papa!" Bunny groaned.I had no objections. At the moment, in fact, I was trying to pick up speed. "We're gonna both fill you, Sweetcakes, ok?" I gasped. "We're gonna fill you and you're gonna share with Grumpy. And let our new friend watch get right in front of him and call Grumpy out. You like that idea?" Da!" Ivan howled. There was a loud stream of Russian and then his spunk coating my stomach - which set me off. Which cause Bunny to swear and go.