My brother was depressed after being dumped by his girlfriend again. I hate my indecisive, unreliable, and unpopular brother, so I listened to him and found out that he might have problems with sex... but I've never seen him, so I don't know. So I thought I'd diagnose it for him and conduct a sex test on him! He's too bad at treating girls' bodies, he's too aggressive because he watches too much adult videos, he's selfish and doesn't think about girls... this is no good. But he has a good dick! So maybe I should teach him what a woman is! At first, my brother was confused about the relationship between brother and sister, but he was easily seduced by my boobs! But you're too weak to boobs, aren't you? There are too many men who are boob aliens! Before I knew it, my brother came to me at night, and I thought it was really bad, but his pathetic appearance was cute, so I played with him and made him cum a lot! Do you hate such a naughty sister?