From The Lives of the Caesars
Tiberius in Capri
HAVING RETIRED TO Capri, he contrived a place for private
orgies where bevies of girls and boys he'd procured, and those called Spintriae,
who were known for kinky practices, would perform threesomes in succession
in front of him to kindle his flagging lust. A number of small rooms were
fitted out with tablet paintings of voluptuous scenes, erotic sculptures
and manuals from Elephantis1, from which the inmates couldn't
fail to understand what the emperor wanted. In the woods and groves he
also devised places for lovemaking and had both sexes dressed up as Pans
and nymphs standing in front of caves and grottoes, so that the whole place
became known as Goat Island.