There are some scenes where some gel is applied to the skin but is highly sexualised.
There is a scene where two characters perform neuropressure. The female character's Side boob and naked back are visible. She covers her breasts with her hands when faced by the camera.
In the last season, a dance is performed by three skimpy-dressed slave women for dinner entertainment and it is implied that one was physically involved with a main character. Aside from attire, there is nothing graphic and the plot is interesting.
Two characters are implied to sleep together during one episode. No nudity, but clothes are removed shortly before the scene ends.
In one episode, one female character touches another suggestively, also displacing clothing short of nudity. This can be considered steamy for some viewers.
Some episodes feature clothing that is considerably revealing, though it is not much more than what one would expect from any other Star Trek series.
In one episode, a character loses her shirt. Nothing is visible since she covers herself with her hands.
Multiple scenes of implied sex