Bulma has a new invention she needs to test, but it's not a tool for Goku or Vegeta! She enlists the help of her step-sister, who's looking quite alternative these days (no blonde hair like step-mom's). In their black suits, fishnets, and red high heels they have a very naughty time together giggling and experimenting. Watch Bulma guide Tights along on how to use her invention till she (Bulma) squirts!