do boobs float in the water?

not enough to save your life if you can't swim, but they are buoyant due to the fact they're mostly made of fatty tissue, along with milk glands, milk ducts, and supportive tissue.

Mine do , but they are kinda small and light so bathtime is fun, lol

Mine do. They remind me of flotation devices lmao

Step into water and let us know.

They are globs of fat. So, yes.

Most likely. Too much adipose tissue there. But muscles won't.