You can compare it to them visiting the zoo and seeing a polar bear for the first time. Then they couldn't get enough of it so they kept coming to the zoo so they can watch more polar bears and maybe some penguins in between. Some will get excited to the point of getting an erection (I was told men in general cannot control it)

Happened a lot while I was traveling in Jordan with my friend too. We've got a few paper scraps thrown at us with a scribble of their phone number when we boarded the public transport. This is what happened when you have locals who had never gone away from their regional country and have watch plenty porns from the internet...

Anyway sorry for the derail, back to the subject at hand.