By Hays' reasoning, penetrating a rectum with a penis is a violation of how God meant humans to function. However, penetrating a human body with a sword, a common way to kill people in biblical times, is acceptable. Apparently human bodies were designed to be penetrated by metal implements, but not by flesh.
Even putting aside the culturally indoctrinated terror that someone in America will assume that two men engage in sodomy behind barely closed doors, there simply isn't an elegant way of asking someone of your gender to hang out for the first time.