Dave had a thing for being humiliated sexually, and he had found out that he enjoyed it even more when his daughters were the ones that were doing the humiliation. It had taken him a long time to go from "regular" sexual activities with his daughters, Natalie and Maria, to having them humiliate him while doing so. He had taken it step by step. From having them pretend to not enjoy sex with him, to cruel insults about how he’s less of a man, that someone else should fuck them instead. It had all been just a fantasy, until tonight. He had invited a complete stranger into his home, to have unprotected sex with his daughters and impregnate them while he watched. "Complete stranger" was right, he had no idea who he was. No name, age, what he did or where he was from, but here he is was nonetheless.

The stranger was currently taking another pause before the next round. How many has it been, 3, 4? Dave couldn’t remember, but he wasn’t planning to ask them to stop any time soon. The stranger was standing over by the door to the bedroom, next to the door was a small table. Dave had placed a pitcher full of cold water, a glass and a bottle with Viagra on it.

He popped one before he got started, going several rounds with the both of them. When he got tired, he would rest, take another Viagra and start up again. It was probably not healthy for him to take so many, but neither one of them really cared about that, both just wanted his cock to be rock hard and ready to keep going.

Dave looked back at his daughters where they lay on the bed. They were blushing and had big smiles on their faces as they looked over at the stranger. Their once tight little pussies were now gaping widely, cum slowly dripping out from them. It was more than Dave had expected. His guest really made sure to fulfill his promise, which was to get as much sperm as he could into their wombs. The stranger did say: "I'll make sure they’re pregnant by the time I leave"

He smiled at the looks on his daughters faces, he was glad that even though this was all to pleasure him through the humiliation, they too had gotten pleasure from it as well. Just like any father, it made him happy to see his little princesses enjoying themselves.

Suddenly, Natalie spoke up. "He fucks SOO much better than Daddy does!"

"He cums more too!" Maria said as she felt his cum leak out of her. Even though it was something he wanted to hear, the words stung. The words were not only to "hurt" their daddy, but also to entice the stranger. It worked. His limp cock was hard again and ready for another go.

The girls looked over at their father worried they might have taken things too far. Dave smiled back at them reassuringly. "They’re good girls" he thought to himself. "They never really wanted to hurt their daddy in any way. All they want is to make their daddy happy". Seeing their fathers smile put the girls at ease. They looked at each other letting out a knowing giggle.

"That excited to be having some REAL sex with a REAL man for once?" The stranger said as he put the glass down on the table. He stood up and stretched as he continued to insult their father. "Want to give your pathetic father some more to jerk his little cock off to?" Natalie and Maria blushed and nodded.
Dave looked down at the puddle of cum at his feet. He stared at it as the fabric started to soak it up, “it’ll leave a stain...”, he thought. But there would be much more of his "pathetic" seed drying up on the carpet. He would be forced to waste his sperm while this stranger would be allowed shoot his cum into his daughter’s wombs, again and again as he watched.

Dave looked up at the clock on the wall, it showed 8:24 PM. It would be a long night indeed. The stranger will keep his promise; he will have impregnated his daughters before he leaves his house.