Question of sterility
The Chosen One can talk to Phyllis about the lack of children in Vault City. With a Perception of 6 and a Doctor skill of 75%, they can convince her to talk to Dr. Troy about the potential of sterility in the population.
The reward is 300 XP for this.
See the world
The Chosen One can convince Phyllis to see the outside world by talking about the "similarity of citizens".
The reward is 300 XP for doing so.
The Chosen One can donate sperm to help improve the genetic diversity of Vault City, after following the dialogue line about there being no children whatsoever in the town. (It is also possible to lampshade that there are no children because someone might be playing the European version of Fallout 2). If asked for a magazine aid, a Cat's Paw will be given.
The experience reward depends on Intelligence: 4 will net 50 XP, at least 5 will give 250 while 7 and above will give the full 500 XP.
The Chosen One can date Phyllis provided he meets her requirements:
- Charisma of 9
- Charisma of 6 and Speech skill of 75% or more
- Charisma of 6 and one of the following: Sex Appeal trait or Kama Sutra Master perk.
The reward is 100 XP and a very dull evening.
Females may flirt with Phyllis and get rejected. This will not affect the conversations that follow in any way.
Behind the scenes
The quest title is a wordplay on syphilis, a sexually transmitted infection.