"Hey! Big Brother! I don't want to have sex unless it's with you."Nana!? Nana, what happened?! My little sister, who was a bit of a spoiled brat until recently, has become a girl who looks at me with Hitomi and teases me sweetly and erotically... It was too dangerous. Maybe she's entering her growth spurt...! She licks my nipples with happy eyes, sucks my dick with a melting face, straddles me, swings her hips, and even after I ejaculate, she still wants it. I love my little sister even more now!