Zee is bisexual with a male preference.

He knew of his sister Kelly Nightshade's adult film career when he was in his teens but didn't pay attention to it until she did a WAM scene for Splatstream - this clip is saved on his computer and it's a go-to for his private time along with others from the site. At one point she caught him watching the clip and they ended up having sex. Both enjoyed the experience, though they haven't repeated it as Zee decided he was more into males.