Sirtification is often fairly easy to give, since most any guy's "identifying
junk" gets much bigger when he is excited, and so all you hafta do would be to bring a cute naked lady into his general vicinity to easily determine whether he's really a dude or not. "
Ma'ammification", on the other hand, can be considerably tougher to reliably obtain, since a gal's boobs do not become noticeably larger when she is sexually aroused, and so a fairly "
flat-chested"
female might not look all that "womanly" distinctive, especially since many guys also possess very noticeable "man boobs" due to hormonal mess-
ups, and so the two sets of organs
may not really look all that different from each other.