This was Thursday and every Thursday dad would get together with his friends from work and they would have a poker night. Since this fell on a full moon from time to time all the men were transformed into werewolves.
So when Dad finished the next one entered and used your mouth. He was Jim the muscle man. It was almost wonderful to have him sit on him but he had to giggle as he saw the tiny cock that hung from this man. The giggle expressed itself as a few bubbles floating up from the drain.
As man after man used your mouth you felt full.
But it was Bob that you had dreaded. You had met Dad's friends from time to time and Bob was the biggest. Easily twice as fat as dad. You could feel the weight as he sat on you. And he sat there for what seemed like hours. More and more came out of him eventually clogging up your throat and unable to flush it down. You would taste it till someone cleaned you out but you had to be impressed by the size of his cock. It was easily 12 inches soft but still unable to be seen past his overhanging belly.
You wanted him so badly.