Is it normal to think twerking is trashy and a major turnoff?

It's super trashy

You're only allowed to twerk if the ass is fat.
If it's not... well, I appreciate the effort, but I'm afraid you were not successful.

I only do it in my house in front of my bf. Or like being silly with my girlfriends.

If you’re good at it, it’s just a type of dance.

I'm a skinny white bitch so I'm not even gonna try lol