Things were getting too hot for us to stay together.

Things are likely to get hot around here for a while.

It will be way to hot for anything to live here.

But it's not so hot for a man of the 20th century, let alone the 21st.

That it was all in her mind, might well be, or else she would not have been so hot for him!

A guy might get hot for a week or two.

You were the one who was all hot for this.

You two get hot and heavy for a few weeks, a month.

Any fund can be hot for a year or two.

As is said more than once in the movie, they are hot for each other.