The house has three bedrooms and one and a half 'baths'. [=one full bathroom and one bathroom with only a sink and a toilet]
Would you like me to 'draw/run a bath' for you? [=to fill the bathtub with water for you?]
a 'full bath' [=a bathroom with a sink, toilet, and a bathtub or shower]
(..) I've been waiting for you. You've been working out, haven't you? I can tell. I was hoping you could give me a bath. I'm very, very dirty. What are you doing? Nothing. - You were masturbating. - I was not. (..)1999 American Beauty