Looking For Specific Nudes

There are many female friends I have that I am very attracted to but could never do anything with. So, they would never send me nudes even if I asked for them. Does anyone know of a way to find specific peoples' nudes online? I have tried searching by name and using a face finder but that has not been successful. I would love any input, it is basically an obsession at this point and I want a solution if there is one.