Once ready she started to gently rub the tiny nubbin of flesh. Sex vedio “I almost had it,” she said to Buster. Having done this on dogs before, Buster immediately jumped on her back and started thrusting. She felt herself come to the edge of an orgasm, but the feeling went away as soon as it had started. He came willingly enough, smiling a doggie grin at Bri. How could something be so hard and soft at the same time? So far, Bri mused, she had learned that you called your vagina a pussy, and the little feel good button at the top was called a clit. She was eager for time alone so she could experiment without getting interrupted. She rubbed slowly at first, using her other hand to tease her nipples, then sped up when she felt she had the hang of it. He came willingly enough, smiling a doggie grin at Bri. His seed streamed into her pussy, and the knot grew to about the size of a tennis ball. She had had no idea it existed until reading about it on a sex site. Suddenly a new type of pain began to surface as Buster’s cock grew a knot. Bri knew the next step had come. Buster looked a little out of breath himself, and when Bri finally sat up to pet him in thanks, she noticed that his doggie penis
