I am a girl and I absolutely would allow Gage to see nude photos of me for money. If that's a sinI'd settle up with G-d later! But as the exchange goes in Its a Wonderful Life:
Clarence: Oh (hahaha) we don't use money in heaven, George.
George: Oh yeah??? Well it comes in pretty handy down here, bub!!
As one gets older, one realizes that we all have to make choices. We all have to set our priorities and pick our battles in this life. One also realizes that life - and the realities of surviving well in this life takes certain resources. Most marriages break up due to money issues, not perceived (or even actual) infidelity so . You do the math. Money matters. It's just a fact. None of us made the rules, but if we want to survive, it's been my experience that we have to learn to play by them.
Getting educated costs money
Growing old costs even more
I think people should look beyond their own selfish insecurities and try to see the big picture. I'd ask what is the right decision for my family? My future children? My parents who may need my help?, etcetc
The main thing is trust. I'm talking about trust in yourself to make decisions you can live with - and truly knowing yourself first.
David and Diana were very young when they married. They didn't have children yet, but were responsible enough to know how important security for the future was to them. They thought their love was "invincible" (as David said). But marriage is a journey, just like all of life. We all make mistakes and I think the reason they presumably WERE able to work it out in the end is that no one betrayed or lied to the other. The decision was MUTUAL. So they realized they had no one to blame but themselves. NOT each other.
I thought it showed immense maturity to be honest. Especially for people in their late 20's or so.

That's for my eyes only.
You know they'd end up online anywayforever.

Why not? Let's assume you need the money badly.There would be no adultery and your wife wouldn't have to know about you showing the nude photos.Would anybody get hurt?