??
im cool with black jack, and poker... [no pun intended]
but why on earth would you want hookers when you get gorgeous heroines for FREE!?
Four options (or some combination thereof.)
1) Power fantasy. What are you going to spend your blackjack winnings on?
2) Conquer fantasy. You can make it into a tournament where one of the final tournament opponents are surrounded by women (hookers).
You can even make it over-the-top slapstick by making it like this:
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3) Roleplay. The girls might have been "kidnapped" and forced into becoming hookers *unless* you win that tournament and rescue them.
4) The hookers can be "extra" girls with limited sex options. Quick and easy(er) content push out or bonus game.