ATTENTION ALL GUYS!!!! HELP!!!?

I've had a bit of experience with this, I have had gf's in the past that have send me some "interesting" photo's. I find it to be a really nice gesture and if you haven't seen each other in a while and it can really spice things up. However the one thing I have never done is asked for dirty photo's, I find it a bit creepy to ask but with long distance maybe its different as it is alot more difficult to see each other its nice to have some sexy momento's.