Prostitution
Prostitution or sexual procurement was the using or selling of sexual favors for money or other things of value. 

The Oran'taku Rajiin claimed she was very young when she was kidnapped from her homeworld and sold into slavery for her sexual talents. In 2153, she was placed in Zjod's sex slave shop in a floating bazaar on the Xanthan planet. ()

During the 2250s, both male and female Orion sex workers operated at an embassy outpost on Qo'noS. They claimed that they had to charge customers regardless of personal feelings. ()

In 2367, William T. Riker prostituted himself by having sex with Lanel in order to escape from a Malcorian hospital. ()

Unofficially, Quark's on Deep Space 9 featured prostitution, in the form of holographic "entertainment." ()

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Sex and reproduction