Pussy leakage

I love to get my wife's thongs after she has worked allday and lick the crouch as I masterbate but I was wondering what is the crusty stuff in her panties? What is the fluid leaking from her.

 

maybe she picks her nose all day and wipes the boogers on her panties.

 

Possibly a good chance it's just her vaginal fluids that have dried up with the heat of her body. Imagine how much would be on her clothes if she didn't wear underwear?

 

It's ur spooge that leaked out of her or someone else's