Board Thread:News and Announcements/@comment-27502630-20151009034409/@comment-3965346-20151013015342

Derpyrebound wrote: AquaticPanic wrote: What if barn mates is about peridot and one of the cows? Well, then she gets to learn about the animal kingdom on Earth. It would be very interesting to see Peridot interact with the natural life forms native to Earth. Pretty sure she might accidentally put her hands where they don't belong like I did when I was about her mental age (which I speculate is between 6 and 12 years old; what i did was stick my hand into a horse's mouth, it wasn't a very enjoyable experience). Yeah, once when I was really little, put my hand in my babysitter's dog's urine stream.

But, yeah I agree, Peridot's mental age is about 6-8 years old, I'm sure about 9-12, she seems more immature than Steven.