Catching Dad

I came home early the other and saw my dad jacking off. He was watching porn and didn’t see me. I watched until he came then realized he had a pair of my panties as well. I quietly snuck out while he cleaned up. Today I left telling him I would be back in a few hours. I snuck back in and sure enough he took a pair of my dirty panties and watched more porn. I am not sure what I want to do. Part of me is excited and I really liked watching him (he is really big) but part of me is kinda freaked out too .