Myself, I can see a photo of a nude in an erotic pose, and say "Nice picture".

Where I have a problem distinguishing between art and pornography is when I see a picture of a pristine Nikon F, black or chrome, with plain prism and 50/1.4 Nikkor-S, or luscious images of an exotic Ebony or the beautiful-girl-next-door charm of the Wista 45DX in cherry, the Schneider 90/4.5 PCS Super Angulon tilt-shift, the...oh, I could go on, but it's getting hot in here...
I must admit to having a few kinks, too. The Ricoh Five-One-Nine, the Bronica D...ooooh...

Then there's the sweet memory of long lost love, looking at the virginal red-and-yellow striped canister of K-25, a sad reminder of what we had, and never will again

My LX doesn't mind. She knows she's beautiful and the only one I go out with. Well, except the MX and ME Super, but they're like in-laws. And the Bronica ETRSi, but that's like going to lunch with your mom.