Shoot your semen deep inside your sister's womb
From Create Your Own Story
Your cock pulses with waves of pleasure as you begin to fill her with your seed. Her pussy clamps shut on your dick and milks it of its precious batter. Your sister screams as she orgasms too, soaking her sheets and your legs with her honey. For 20 seconds straight you empty yourself into your sister's womb, shooting stream after stream of your cum inside her fertile cunt. You hear her moan in pleasure as her juices and your sperm ooze out of her snatch and coat your cock.
You: