Here is the full list of all 56 Inside Jennifer achievements.
Stay true to Mark... As much as you can
Help out a stranger
Eat at a diner
Mark attacks Jimmy
Dimitri sells the store
Take pills
Deny Kelly
If in danger: press P
Get fired from work
Use two toys
Fail the job interview... Miserably
Get hired without having to do the job interview
Ian carjob...
End up with Paul
End badly with Paul
Press the red button
Spend some time with Paul, late in the night
Clean Mark's mess
Call Ian over for emotional support
Get back at Mark by spending the evening with Ian
Go shopping
Mark and Jennifer die
Console Dimitri in his time of need
Catch the thief
Laurie drinks a spiked drink
Hold Kelly's hand
Jennifer gets fully corrupted by Jimmy
Snitch on Hope
Use one toy
End up with Laurie
Blackmail Hope
Hope gets rid of Julius alone
Cheat on Mark at the wedding
Jimmy goes to jail
Go on vacation
Make up with Mark
End up with Tim
End up with Julius
Become the new dean
Get married to Mark
Jennifer plays with Jimmy in front of Mark
End up with Laurie & Tim
Jennifer ends Jimmy
Prank call
Make a scene in the subway
Spy on a couple in the park
Don't wait for Mark
Make the first choice
Settings
Stay true to Mark
Jennifer pays Jimmy back
Check up on Laurie and Dimitri
Don't clean Mark's mess
Press the angle button
Press the HOT angle button
Get every ending