No nudity, but there is sex implied. The two main characters presumably have sex offscreen. The woman has apparently been involved with another man before.
While wheelchair dancing, a man grabs a woman's rear end, and she slaps him. They later make up and she gives him a passionate French kiss.
A man falls in love with a transsexual woman, not knowing that she was once a man. She is nervous about telling him the truth, and she is falling for him as well. But they do not have sex in the film.