The reference I remember regards the introduction of Hetik as the station's first dabo boy.Also, Jason, I don't know if this is of interest, but in Twilight, I believe, either Quark or Treir (and possibly both) think about people's relationships and attractiveness to others without regard to them being of opposite genders. I'd have to search for the references, but I know they're in there.
To paraphrase:
QUARK
I don’t care what his name is or why he’s here. I want him to stop touching my dabo wheel. And tell him to put some clothes on.
TREIR
He’s wearing more than I am.
QUARK
You have more parts people want to see.
TREIR
Some people. But some would rather see Hetik’s parts.
QUARK
What’s your point?
And later, we do indeed see some dabo players at the table, and some of the females are adoring Treir, and some of the males are adoring Hetik.