You cum in her womb

After a short while you can feel that you are about to cum. You push your dick as far into her pussy as you can and shoot your cum deep into her womb. Your sister gasps the moment she feels your cum filling her up. She then takes a knife laying on the tabel next to the bed and with a few cuts castrates you, ending your life as a man. The last thing you see is her holding up your severd balls before you pass out.