Chicken out

No. No, no, no. This is way too risky. If your parents or your brother saw you naked, you would never live it down.

You close your door, slide back into bed, and re-dress yourself.

It was fun while it lasted, but you can't push it any further. At least you got some fun memories out of it. Maybe you can run naked to the bathroom again some other time, preferably when no one else is home.

You close your eyes and doze off, somewhat disappointed, but satisfied that you were able to do as much as you did.