Here is the full list of all 27 One Night Stand achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
You both felt the same way about the book, her writing and Love IRL.
You chose not to believe anything.
You might want to double check the evidence...
You got thrown out with your clothes on.
Accuse her of drugging you.
You choose to remain silent whenever possible.
You receive another message from Gary.
You made a break for it.
She picked up her six-string.
You failed at the last hurdle.
You told her the last name that she wanted to hear.
What’s in a name anyway?
Honesty really is the best policy.
Turns out you share the same name!
You investigated every item in the game.
You became a fan of Love IRL.
Escaped quickly and clothed.
You successfully stole a pair of her panties.
Escaped during her moment of need.
That's why they call it a one night stand.
Order a fancy coffee.
You got thrown out without your clothes.
You became friends.
You got caught wearing her underwear.
Sharing isn't caring.
You got rejected.
You got thrown out.