eww.

[poker-penguin]

Uh yeah, why is this gross?

Even leaving aside the fact that you two (presumably) are exchanging bodily fluids on a regular basis, it's a toothbrush.

The only place it has been (again, I'm presuming) is in the mouth of another healthy individual. Now, if he had Hep C or something, then you could be worried. Otherwise, this is a big whatever.

As someone said, the word grossified is great.

You should also realise that you are lucky your boyfriend seems to be willing to humour your weird little phobia about toothbrush cooties.