Here is the full list of all 20 Frisky Business achievements.
Be nice to Charlie
Be nice to Charlie and Samantha
Get the true ending
Dated Lucy
Peep through all the girls windows
Get it on with all the girls
Threesome with Balbina and Serena
Have Threesome with Jenny and Gertrude
Dated Balbina
Dated Jenny
Get it on with Tiffany
Get it on with Claire
No Wrong Answers in Trivia
Piss off Balbina
Collect every piece of evidence
Be a Jerk to Sam and Charlie
Complete a play through with no sexy times
Break the 4th Wall
Get all possible endings
Get it on with Jenny X4