Bigger than my dad

Ok so me and my mom and dad went on a trip up north this winter for the holidays, and long story short I accidentally walked in on my dad when he was coming out of the shower. He had clearly been masturbating in the shower because he was fully hard, but it wasn’t very big like only 4 inches if that. I’m more than double that which is why it surprised me. He totally saw me look at his junk and got super embarrassed and I left fast. That was near the end of our trip and then I went back to college and I just got back for the summer last week. All semester I was thinking about it and I realized that I might be able to use that fact to seduce my mom. I don’t really know how, but even since I got back my dad is acting super weird and he won’t make eye contact with me. It’s crazy, I really want to figure out how I can use this to my advantage