Here is an example of what you'd have to do to cash in on this:
#1: get a bitcoin wallet - something simple like InstaWallet.org (free)
#2: put the bitcoin address in your photo like this: http://i.imgur.com/D3cXk.jpg but it's a million times better if you write out your "first bits" on a post-it and hold it in your picture. This prevents people from just reposting old porn with their own address.
#3: profit
It's that simple. If you're interested, PM me and/or visit /r/GirlsGoneBitcoin.