My gf wont send me pics?

Me and my gf have been dating for a month now and everything has been good. Sadly though were in a long distance rs so we cant physically do anything. This is where sexing comes in.I asked my gf very politly last week if i could have a nude pic or two. She said no. Shes send nudes in the past to other random guys (not bf's) but she stopped because they were doing things with the pics. So now basiclly im paying for other guys crimes. After alot of begging and pleading she finally agreed to send me a pic of her in her bra undershirt kind of deal. I guess that was okay but i wanted something more. So today i asked for a pick of her in her panties she hesitantly agreed and said she would send it sometime this weekend. She said shell more than likley never send me any nudes! im devastated shes got a smokin body and i cant even see it. WTF do i do? just be patient or what?