Here is the full list of all 21 Hardcore Cruising: A Sci-Fi Gay Sex Cruise! achievements.
Dance Carefully
You're not looking for anything serious
You're such a tease
Three's not a crowd
Your heart belongs to him alone
Really not funny
You're so judgey
It was a weird combo
Wrapped up neatly
The oddest of thruples
So jiggly
Lame
You broke his heart
Nice
Travel the stars together
It's like from that one episode of Star Trek where the woman went through the floor
Rude
Your loss
Beautiful
Such chemistry
Terrible advice