…is that wrong? I’m scared of disgusting him
It’s definitely not wrong; if it were me, I’d consider it rude if you didn’t beg Dad to violate you.
But here’s the thing… he should be disgusted. I’m disgusted, and I barely know you. You’re a gross little thing with a brain full of perverted thoughts, after all. It’s okay if he finds you to be a degenerate garbage can… you deserve it.
What you should really be asking is: how will he react to being disgusted? Will it make his contempt grow and his cock harden, or will he recoil from a display of your sick little urges? As with most things, you aren’t really what matters here… it’s all about what kind of man he chooses to be.