Its not weird - that daddy is a pro fucker, he knows how to make himself feel better than the normal straight in angle. I love fucking in that position.
Its not weird. That angle lets you get in deep. It feels great. Its one of my favorite angles to fuck in. Have them kind of lay on their side, lets you get in their ass from an another angle rather than just straight on like most people are used to. Going in from the side feels great. And from my experience, the bottom seems to enjoy it just as much.