Jenny, Jenny

So yes I have a little tomboy named Jenny. Which I am totally okay with but recently she discovered Josh's old underware that have cool boy things like batman and spiderman and cars. And since they dont make this in girls, she refuses to wear panties anymore she only wants the boy underware. Should I be worried. I do make her wear girl panies when we go to church and when she is in a dress just in case she flashes someone. She slept with me while Jake was at camp and I came into to this and had to take a picture for proof someday that yes she was really that boyish.