Nice way the grandpas got their dicks in her pussy. She may not have counted on such a vigor, but the fellows were old school - pawed at her like young horses. And the honorable thing was that they didn't forget her ass. That's who wouldn't ruin a furrow. They got positive emotions from the girl and went to play dominoes. With that kind of energy, you could be playing with chicks till you're 100 years old. One stick adds a year to life!
For the daughter, it's an attempt to gain experience not on the street with drug addicts and alcoholics, but with her own father as a family member. For the father, it's an extra excuse to release the tension without cheating on his wife.