My brother got dumped by his girlfriend again and was depressed. I thought that I don't like older guys who are indecisive, unreliable, and unpopular, so I asked him about it and found out that he might have trouble having sex...but I've never seen him, so I don't know. So I decided to give him a diagnosis and conducted a sex test on him! He's too bad at handling girls' bodies, he's too greedy from watching porn, he's too selfish and doesn't think about girls...this is no good. But dick has something good! If that's the case, why don't I teach you what a woman is? My older brother was confused at first about the relationship between brother and sister, but he also fell in love with the temptation of my breasts! I mean, you're too sensitive about breasts, aren't you? Men have too many boobs aliens! Before I knew it, my older brother had fucked me at night, and I thought it was really bad, but I found her pathetic appearance so cute that I made her slut cum! Do you hate this naughty little sister?