Some gay couples adopt. They feel a desire to have a family, raise offspring even if they haven't actually borne it. Some gay penguins have been documented as raising chicks that technically aren't theirs. [He'd been a little touched by that, and thought for about two seconds that maybe he could adopt a lost metaphorical penguin chick.]

And not wanting sex would make relationships hard. Everyone wants to have sex. It seems like every time I walk through the commons someone mentions sex. Closeness is important. You would want to be close with someone, wouldn't you?

[He feels a funny twinge in his chest as the realization comes to him.] You wouldn't want someone like me if that's what I'm like. You'd be frustrated and sad with me if I couldn't give you what you wanted. [Artemis has a pained look on his face for almost thirty seconds before he realizes his face is making his thoughts very plain right now. He squeezes Rikku's hand and looks down at his chest.] I don't want to see you sad.