The statement "What do expect his dick to look like when his dad is the family dog?" seems odd to me, but after the things I've seen in 3D porn, almost nothing seems to be out of bounds. Almost everything in it is fantasy, especially when it comes to bestiality porn. Look how many characters get pregnant by animals, that's why I have no idea if that's part of the plot or not.
Also, because I saw The Bully before stumbling onto Poolside Escapade, I was shocked when I saw that they're the same character, Jenny.