Alright, brother... its time we had a little talk. Privately... I don't want our parents overhearing this. I've caught you in the past spying on me in the shower, sniffing my panties, and ogling me in my bikini every time we go to the beach. I mean, c'mon. You changed your phone wallpaper to a picture of me in my tiny bikini! Now you've really pushed it over the edge... I found the new lingerie I ordered... hidden in your room! How disgusting. What were you doing with it?! I bet I know, so I put it on. How does it look, bro? Just as sexy as you imagined when you were beating off to your sister? You're a sick fuck. I see you getting turned on. You LOVE seeing me in this tiny velvet lingerie set. I know how badly you want to fuck your own sister, pervert. I know how badly you want to stroke it to me now. You're ashamed, yes, but admit it- you're excited to stroke your cock in front of your sister, aren't you?