Sex and being lovers is mentioned throughout the movie.
A man wears as little as a towel and boxers.
The main lead male and female characters have a dialogue in their first meeting in which nearly all of the lines could be construed as propositioning. However, every line is a double entendre, and the sexual meaning would most likely go over the heads of those under middle-school age.
The two leads kiss several times, and it's strongly implied that they have sleep together the night they meet.