BB I've never seen this before. Maybe it is possible. . .
However, LZ need not worry. You just need to make sure that the level of this BB is lower than your own role, so it will be useful whether you are carrying a BB or two groups of BBs.
Once BB's level is higher than the owner's, it is equal to not bringing it.
In addition, if you don't call it a kitten, you call it a stupid cat, a good cat and a civet cat.