Just as Gail decided that she would suck the dog's cock until he came in her mouth, Scotty surprised her by moving around behind her. The animal went ...between her legs, his cold nose prodding against her drooling cuntlips."He wants to fuck you again, Gail," Biff said, half- disgustedly and half-excitedly.He lay down on one side next to his sister, propping his head up on one arm while he began to play with his prick with his other hand. He was facing Gail and Scotty, eager to see what was going. That was when she told the the whole story."When I was sixteen Daddy told me there were some things I needed to know about boys. I had been bugging him to let me start dating and he told me that boys all wanted the same thing. I asked what thing that was. I had always had a good relationship with Daddy and so I trusted him to be honest." He told me that all boys wanted what I had in my panties, my 'pussy' he called it. And he said that I wasn't to let them put their 'pricks' in my 'pussy'.. ..I am gonna cum." She pulled her lips from my throbbing dick long enough to say "I certainly hope so sweetheart, or I am doing it wrong." She then went back to the task at hand, sucking me into oblivion when at last, I released. I shot the first load in her mouth, then the second followed by a third. By the forth shot of my warm spunk she pulled up to the tip of my dick and some of my cum overflowed down her lips to her chin. I continued to shoot out cum like a volcano, soaking my cock, my. I was trying all sorts of things to make it happen, including forcing her. But it all went in vain as my lover wouldn’t budge an inch.At one point, I was too sexually frustrated that I was okay with someone else having my girlfriend for the first time too, so she actually knows the pleasure and I can start to have her.I started thinking like a cuckold and was willing to sacrifice her virginity to some other guy, to make her experience the pleasurable feelings and be comfortable with it. Lol.But.