Jennifer Burton said she felt stupid being totally naked pretending to have sex with an invisible man while a large male crew watched. She said she hated doing nude scenes anyway, especially on low budget and/or non-union productions, because she'd get nervous that something is showing that's not supposed to be showing, like her vagina. Producers would tell her they can't see it, but then she'd see dailies and it's clearly visible onscreen and they refused to take out the shot. She decided not to do nude scenes anymore unless they're paying her a lot of money or it's a SAG film, because she felt more protected that way.
Gabriella Hall worked with a professional mime to learn how to act as if she was having sex with an invisible man.
During Gabriella Hall's sex scene with the invisible man, the film crew had a machine that blew a concentrated stream of air up and down her leg to make it seem as if the invisible man was caressing it.
Delphine Pacific said in the scene where the invisible man is stripping off her underwear, they tied thin clear plastic strings to both sides of her g-string panties, and pulled them off slowly. Then the film was sped up during editing to make it look as if they were pulled down fast.