They were not really being sexual at all but "pseudo-sexual". Penetrative sex, however, was seen as demeaning for the passive partner, and outside the socially accepted norm. Nor was it forgotten in the Middle Ages, when Greek Ganymede became a codeword for sodomitical vice. I always make a note of this when questions like this come up, so I'm glad you did. Traditionally, a pederastic relationship could continue until the widespread growth of the boy's body hair, when he is considered a man.
There in three rooms reserved for artistic renditions of sexual congress, pederasty socially accepted in ancient timeshomoerotic love, and the quaintly named "bucolic love affair", viewers are bombarded with what the ancients were clearly good at:
Mad about the boy
Such as the bittersweet story of a love triangle made in heaven. Olive oil would be decanted from the giant terracotta amphorae used to transport it once it reached its destination into new, smaller amphorae for sale and household use, where it would be used in basically everything - from cooking oil to lamp oil to body applications. Diana was the goddess of girlhood and virginity. And one who is just beginning his 15th year is yet more delightful. Things we do know about the ancient Greeks are that women had no rights, were not allowed to be educated, and their only purpose was to procreate. Hence, if you changed the genders in ancient Greek texts you discovered exactly the same kind of double standard the author of the Observer article had noted. With aristocratic young Grecian men leaving home for military or athletic training at the same age as women were going off with their much older husbands in arranged marriages, the relationship between the young man and his older mentor had a less sordid connotation.