She did videos with pieallthetime and Analgirlolive I think there was someone else too ...yeah the name escapes me.
Not how it works. The Vagina is a muscle basically. It has a muscle memory towards sizes and knows when to accommodate towards sizes. It's why girls have to prepare to do those crazy dildo stuff and that's things that usually doesn't get filmed. They retain shape. Buttholes on the other hand I heard do not function like that so that can be more of an issue. Vaginal stuff she'd be fine (although granted she's clearly a size queen)