Here is the full list of all 21 Sex Simulator achievements.
Spend in the game a lot of time at a time
Find Freddy's Outfit
Run red alert
Performe Finisher per 12 seconds
When the girl is on top, press “A” 1000 times in one position
Read help
Disable music
Make 50 kisses in one game.
Bite a girl 25 times a game
Use the editor of clothing
Change background
Perform all finishers in one game
Perform 2 finishers per mouth in one game
Finish it in her mouth
Make a girl a cream pie
Fill the orgasm and the excitement of the girl at the same time
Tearing clothes on a girl
Slap girl 10 times in one game
Raise girl excitation to 100%
Remove clothes from the girl
Run game for the first time