As Seen on Facebook . . .

[downbeatplumb]

I don't get racy friend requests like that.

I only accept the friend request if there's at least one mutual friend.

Oh I didn't accept it. I always message the person and look over their profile before I answer. I messaged him asking if we knew each other then went to look at his profile. After I saw all that I deleted the friend request. I normally don't get stuff like this either which is why I was so like.... uh... wtf?

I had a friend request from what looked like a comely young lass that I didn't recognise. Intrigued I wondered, as you did, if I had any mutual friends that would explain the request. 
So I looked at her friends. 
They were all middle aged men called John (my real first name). 
I think it was some kind of collector.