Here is the full list of all 19 Cybersex: Lust Story achievements.
Buy an android
Get a job
Get a bad ending
Get a neutral ending
Get a good ending
Buy first player implant
Take a girl on a first date
Goes on a date 6 times
Give last data to a corporate woman
Accumulate 10000 dollars
Buy a second implant for a girl
Buy a third implant for a girl
Buy a fourth implant for a girl
To maximize Humanity
To reach the peak of Love
Buy the last implant for a girl
Have sex with a girl who's starting to learn about human feelings
Have sex with an almost humanized girl
Have sex with a humanized girl