If she was watching
barbie videos, and the video in question featured
barbie then she obviously got it from a suggested video. My cousin once tried to visit barbie.com when she was 6, also wasn't a very good speller, and ended up at a porn site. When I walked in she was trying to exit out of all the porn popups that resulted. I quickly closed them for her and got her to barbie.com. I was a kid, but I didn't think anything of it as she was clearly baffled at all the porn.