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In 1998, developers at Black Isle Studio were more than cheeky with the amount of sex content in their Fallout 2 game. One of the actual quests was to become a porn star.

To determine your characters eligibility to professionally drink from the furry cup, a formula was developed to evaluate your apptitude for the old 'in and out' to obtain the status of 'porn star' to complete the quest.

Introducing The Fallout 2 Sex Formula

Originally only endurance was considered a necessary attribute in the game. It was later decided that going the distance is great - but you don’t want the pistons to run dry.

In an attempt to flesh out something more challenging, the character attribute system was utilised. Black Isle Studio’s judged that the characteristics required to complete the quest therefore should encompass a greater range of talents.

Chris Avellone and Tom French broke these down into four main quadrants of stats:

  • Charisma
  • Agility
  • Endurance
  • Strength

These attributes were then incorporated into a formula.


The sex formula works by ranking these four virtues, dividing them by 100, and finally adding these to attributes such as; Sex Appeal, Karma Sutra Master, Sexpert and Virgin of the Wastes.

The result: a sexual ranking score that determined your 'Porn Star'eligibility

You’ve got the “right” stuff. Members of the opposite sex are attracted to you, but those of the same sex tend to become quite jealous.

A Real Life Experience Inspired The Formula

admitted he began the debate with his colleague after considering his own circumstance in an interview with Eurogamer.

This girl that I was dating was way into this guy that was way better looking than me, so I was like, you know what? Charisma plays a much bigger part in this.

I like that Tom French knew he was punching above his weight and thought “how can I represent that in a formula?” The Fallout formula acknowledges sexual mojo is a complicated beast that was attempted to be represented in the game.

If You Ever Consider Trying The Quest, Here's How

To reach the status of porn star required your characters sexual prowess to increase over a series of objectives in order to complete the ‘job’ and pass the quest.

To pass the audition you will need at least 9 Charisma, being a Made Man or a prizefighter works also.

After the audition, the Corsican Brothers will turn down the player for the role if either Agility or Endurance is under 8.

Having the proper experience is also needed as well, and the Kama Sutra Master perk or the trait Sex Appeal will help with this.

After passing everything the player can finally star in the film and will become a full fledged Porn Star, and will get to choose their own porn name.

Do The Numbers Work For You?

Sure, we ca research The Discovery Channel with the goal of going to town on a lucky recipient like a horny wildebeest – but don’t expect too much success with that. FYI - if you do, awesome!

Unfortunately, people’s sexual passions are not as straight forward as Fallout’s Sex Formula. I wish it was that easy...

Did you reached the status of Gigolo or Porn Star in Fallout 2?

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