Here is the full list of all 20 Strip Black Jack - there are Sex Teacher achievements.
Unlock Strip Level 1
Unlock Strip Level 2
Unlock Strip Level 3
Unlock Strip Level 4
Unlock Strip Level 5
Unlock Strip Level 6
Unlock Strip Level 7
Unlock Strip Level 8
Unlock Strip Level 9
Earn 10 k Dollar in Normal Mode
Earn 20 k Dollar in Normal Mode
Earn 30 k Dollar in Normal Mode
Earn 40 k Dollar in Normal Mode
Earn 50 k Dollar in Normal Mode
Earn 60 k Dollar in Normal Mode
Earn 70 k Dollar in Normal Mode
Earn 80 k Dollar in Normal Mode
Earn 90 k Dollar in Normal Mode
Earn 100 k Dollar in Normal Mode
Win at least 100 Games