You see that she grows up, her body begins to develop to that of a young girl, she reaches your height and has her breasts, hips like a woman of your age, then ears and cat's tail come out and her clothes become as for a girl her age; you look weird until you feel like you get ears and tail, but from mouse, and you are no longer at your height but shrink until you reach her waist, and not only that your body is softer and weaker, your clothes become a girl's kimono, also noticing your crotch you feel that you are really a girl.
They both look at each other scared, but then she reacts, grabs you and lies on your bed, causing you to fall on her, she speaks to you:
You rightly wanted that lamp, apparently now I am the young babysitter and you the little girl to care for, calm down you will see that I can be one of the best sitters, as long as you are a tender and respectful girl.
You stay calm and half surprised, starting to react while she hugs you.