They get together about once every couple of days and Kat fucks her silly but they have been able to keep it from Becky's family to them Kat is just a... good friend. So when Kat out of the blue told Becky's husband and 16yr daughter that she wanted to throw a surprise brithday party for Becky they were Ok lets do it. Three days before the party Kat took Becky to a dress shop and as they looked around Kat picked out one and told Becky to try it on, in the dressing room Kat was all over Becky. She continued to do this her head bobbing back and forth like a piston as he held her head as if it were about to fall off.She increased the rate as his cock banged against the back of her throat almost making her gag, her lips gripping ever tighter constricting the blood flow in his cock and he could feel as if he were about to explode. Just as he thought he would last a minute or two more he felt a gush of cum spurt into her mouth, she continued to suck away just sighing out an mmmm sound as. Yeah, I like that idea. Bill, go get it and let's sit it up right here."Bill brought the screen and folding cloth chair, then set it up and put the cloth chair inside it. Harriet said, "Get in and let's see what it looks like."I went in and sat down as she wanted. She shut the screen, enclosing me inside. Since the den was dark to begin with, and the screen was so tall, it was very dark as I sat there. Harriet tapped one of the flaps over one of the hole and said, "Linda, dear, open this flap,. It slides in and up. My legs ease apart as I turn my face to meet yours and let our lips meet. Do you want me? I want you to take me. But, I am not going to say anything. I part my lips, I taste your lipstick and feel your breath on my cheek. Your tongue brushes over mine as I slowly melt into bliss. The pressure in me rises and moves deep down. Your soft hand slides along the inside of my thighs, slipping across my thigh high nylons until it brushes on my panties. A surge runs through me as.