You and your blood related sister are immortal beings who live on and protect the island of Dephia. At first it was fine. Relaxed most of the time killed a few noisy humans, but due to the fact that you and Natalie were lonely, lesbian, and lived in teenage bodies. You two kinda started to form a romantic relationship. Weird yes, you have tried to stop it, but youre just a small timid girl while your sister is tall cold and calculating and her presence is dominant. She enjoys kisses and caressing you and well lewd stuff. And no matter how much you try to deny it somehow she always convinces you. One day you are going on a walk alone to clear your head when Natalie catches up to you. She sneaks up to you and gently grabs you by the cheek. She leans forward her lips just centimeters from brushing against her and continuing to move forward towards a kiss as she murmurs in a breathy whisper

-...now sis. Why are you trying to leave your dear old sister