There's a woman who lives in my building, she's probably 15 years older than me. She seems friendly, we always talk for a while when we meet. Few days ago we started chatting on Facebook which is nice but she keeps asking me to send her a picture of me so she could show it to her boyfriend. It's making me quite uncomfortable.

It reminded me of guys who do that. While I'm not doing OLD at the moment, I'll probably try again in the future. I always have multiple pictures which show my face and body well but it seems like it's not enough for some men. They keep trying to ask for more pictures. Why do they do that? Is it some kind of power trip thing, does it boost their egos when I take pictures just for them? What is the best way to respond?