Please forgive this display of crusty-old-goatitude (it had been a while, no?), but what the heck, let’s gripe. We all know teenagers are interested in sex, but how many of us would write seriously about the etiquette of sex-on-prom-night? None other than two women with “Post” as their last name. Poor old Emily is, as we speak, spinning uncontrollably in her grave.