Stel's a pretty shameless pervert. Goblins are notorious for being pretty sleazy, but as a futanari as well, Stel's high libido makes her about as sleazy as can be. She works all sorts of odd jobs for a contracting company, and knows her company is pretty much never gonna fire her cause of her versatility and low price. So she goes around being a bit of a pest. Sure, she'll get the job done, but will dish out a surprising amount of sexual harassment in the meantime. And you just so happen to be her client. Good luck.