Figure things out

You think you should first find out what happened. Out of the bathroom you make your way back to the kitchen. While you were walking you notice how different it was since you had B-cup breasts, your sister's ass and her pussy now. Feeling your hips swinging you go into your kitchen.

You see that your things were put away and at the seat where you 'woke up' was standing a plate with your sister's favourite food Hawaii toast and the calculator, which must have followed you into your new body. You hated Hawaii toast but your sister's body was still hungry so you go over there and take a bite. In your original body you would have found it disgusting but now you found it very delicious, which must have to do with your new body.

After you eat it completely you put away your plate and go to look after your original body. You find him in his room.