Unfortunately, this is human nature.  Even before our conscious mind can make a measured, calculated response; the unconscious has already picked up the [sexy] cue, and released a torrent of hormones.

The trick is to think of every beautiful girl profile as a wily scammer.  But, this is easier said than done.

I have a 'beautiful, sexy girl' profile on Facebook [that I don't use to scam people!] and my cousin knows it's me; yet, every now and then, he wants to chat, just to get that hormone surge from chatting with a beautiful girl, even if it's on a profile!