We have white, slick tile in our kitchen and bathrooms, and hate it (it was
already installed when we found the house).

Can slick tile like this be painted as a temporary redecorating technique until
I get the time to install new tile (likely several years)? I am more concerned
with redoing the kitchen (behind countertops, stove backsplash and behind sink)
than the bathrooms.

What kind of paint, and can I paint over the grout too?