Porn Stars from Mars (2004)

Citizens of Earth prepare for the ultimate sexual invasion... form outer space! The biggest boobs in the solar system leave Mars to travel the galaxy in search of superior male cock to satisfy their galactic-sized sex drives. The Martians crash on Earth and take their sex-depraved leaders captive. Earth will never be the same as these busty aliens gleefully sexualize the planet in an all-star, out-of-this-world, hardcore, sci-fi sex comedy from writer-director Elizabeth Starr.