Make my brother cum into my panty

I walk in on my brother being a total pervert again! This time I catch him sniffing my dirty panties I left in the bathroom. He's just sitting there with no pants on trying to tell me he's not doing anything. I decide if my loser brother really wants to smell something I'll just take a sh*t and smother his face with my ass afterwards! He can clean my ass for me, how lucky is he really? He's so freaking hard from the experience I jerk him off in my panties to collect eveidence of his perversion for later blackmail!Now I own his ass!