Here is the full list of all 14 Jenni's DONG has got it GOIN' ON: The Jenni Trilogy achievements.
Be Jenni's New BFF
Get Jenni with 5+ Event
Anger Jenni.
Beat all games.
Have Jenni Arrested
Make Jenni Get Kicked Out
Anwser Jenni your truly girly self
End of Jenni Truth or Dare
Start Jenni 3
Get The Bottle Event
End of Jenni's New Friend
Start Jenni 2
Finished Jenni Wrong Number
Start Jenni 1