There was a knock on our door. I got up to see who it was.Through the door, Aunt Liz said, "I'm sorry kids, I should've minded my own business—Will ...ou forgive me for this?"I opened the door, seeing her in a t-shirt and panties, and said, "Aunt Liz, come on in." I could see that Christine was a little intimidated by our aunt's big curves, especially her rather conspicuous breasts.Sitting down, she said, "So, what precipitated your becoming Lovers exactly?"I took my sister's hand and explained. He was moving with me.. I was increasing pace.. And then I really felt her body shiver n she scremed… I kept my lips on her lips.. She sucked my lower lip hard n gave me a bite.I asked her to change position n wanted her to sit on me.. She sat on my dick when I was resting now.. She started moving for maximum pleasure. And then started squatting.. I could see my dick going in n out her pussy.. It was lovely site.. I also pressed her boobs when they were moving as she moved. Up n down.. I. I told mom to take out some cuffs she had in the bag and cuff my hands behind my back and walk me to the party. Needless to say she loved that idea and we did just that before walking into the party again. As soon as we got there, I noticed all the people at the party watching us. It certainly drew their attention as I figured it would the judges as well. Everyone took turns going into the middle of a big circle and showing off their costumes. When it came to mom and I’s turn, we made sure we. Would you take a seat over there. I'll get a nurse to come out to see you." Thank you." Another tricky hurdle crossed. I took a seat and began perusing a car magazine. Within minutes a petite Afro Carib nurse had seated herself beside me. She crossed her slim legs and balanced a clip-board on one knee. "Hi, I'm Mandy. So you'd like to donate?" Er, yes please." Today?" Er, why not? Yes, today, if that's OK," I stammered."Sure. We're not terribly busy at the moment. I've just got to take a few.