Yeah, that pretty much counts as cheating. At the very least, it proves an intention to cheat. Maybe even attempted cheating, if you want to get technical.
Long before I got married, I worked as a male stripper for a couple of months. And I played in a locally famous rock band (and not for the money, if you know what I mean), which means more than a few dozen people have seen me completely naked. But that wasn't cheating, because I was free and single when it happened.
But I'm not single now, I'm legally married. If I took a pic of my Fidel Castro (aka The Little General, the pork sword, Darth Helmet, etc.) and sent it to another woman, my wife would get really mad for some silly reason. She might even file for a divorce, because sending photos of Major Woody and Private Parts is forbidden in the Laws Of Relationships.
If you have a significant whatever (husband, fiancé, boyfriend, girlfriend, etc.) and you're sending pics of The Twins or The Happy Valley to someone else, that counts as cheating in just about everyone's book.