After seeing how much your girlfriend enjoying be a baby. You thought maybe you should get younger as well. Of course not as young. Someone still had to be old enough to be in charge. So you concintrated on being younger. You figured 5 was good enough.
Right away you felt yourself shrink and your clothes change along with you. You are amazed how much the room grows around you. Within minutes you had become the 5 yr old like you had planned.
Your girlfriend giggles at the site you being 5 now despite her being 1 at the moment.
You take a look around the room to see that your bed was now a small child's bed, the furniture were smaller since the occupents were 5 and 1.
Thats when..