[Ain is red from the tips of his ears to the tops of his shoulders right about now. It has nothing to do with the spring and everything to do with the hot man interrogating him about if his dick works.]

It functions. And that's what clothes are for...! Humans don't have a lot in the way of body hair or scales or anything, so we have to wear clothes. [And, because Ain isn't considering what the results of this next question could possibly be, he blurts out:] How is any of this inefficient?