I am listening to music on my headphones and digging through my closet trying to find an outfit for my date tonight. What I don't hear is my brother come into my room and is watching me as I dance and pick out clothes. I almost have a heart attack when I turn around and see him there! Since he's here, I ask him to help me pick out something to wear for my date. I need another guy's opinion. I have to take off my bra for the romper to fit me correctly, exposing my boobs. I notice my brother gets a hard on and I call him out on it! I can see from the outline, it looks really big and now he's got my interest. Mom and Dad won't be home for a few hours and I decide to take advantage of my brother's boner. I ride him (shot from his POV) with my tits bouncing and jiggling up and down with each thrust. Next, I want him to fuck me doggystyle and I bend over on all fours for him to take me. "Cum in your sister!" I scream and moan as he fills me with a big load