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