真面目過ぎて僕が下ネタを言うと顔を真っ赤にするお姉ちゃん。美人なのに彼氏もいっこうに作る様子がないので、からかって「処女だろ」とバカにしたらまさかの本物！「好きな人はいないの？」と聞くと、まさかの僕！！まさかのブラコン！！
My Big Sister Is So Prim And Proper That Whenever I Make Dirty Jokes Her Face Gets Deep Red She's Really Pretty But She Never Seems To Have A Boyfriend, So I Teased Her And Said, "You Must Be A Virgin" And It Turns Out That She Was The Real Thing! So I Asked Her, "Isn't There A Boy That You Like?" And Then She Said, To My Surprise, That She Was In Love With Me!! So, She Had A Brother Complex!!
