IPX-755 has been subjected to oral sex by her younger sister for seven years; now they are inseparable. (Futaba Megumi)

What are we...? We've been having this kind of relationship with my brother for seven years. It's a secret I can't tell anyone, but... I don't think it will end like this... During puberty, my sister Emma's uncontrollable sexual urges... crossed boundaries that shouldn't have been crossed. A sibling's gender story. Day after day, I let my sister hold my penis... just sucking it wasn't enough, I crossed the line. My sister accepted. My brother's libido accelerated. Seven years of sibling life passed in the blink of an eye. Aipoke event! Futaba E Mahjong live appearance!