GDHH-079 - My Sister is in Charge of My Ejaculation Control

Spending my days surrounded by porn and tissues, my family finally held an intervention. Now, I'm forbidden from masturbating without my sister's permission. But my libido is unstoppable, and my sister is actually enjoying the challenge. From handjobs to oral, nothing can satisfy me until she finally takes things to the next level. I know it's wrong, but the pleasure is too intense—I can't stop cumming inside her.