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