Francis Bacon, in his unfinished dialogue entitled ‘An Advertisement touching an Holy War’, ends a fierce attack on unnatural social orders with these words: ‘For these cases, of women to govern men, (and) slaves (to govern) free men, are total . . . perversions of the laws of nature and nations.’ In Bacon’s dialogue, Zebedaeus was in fact referring these two cases of perversion to the mythical Amazons and to the slaves of the Sultanry of the Mamaluches. However, his words could equally well apply to the two major themes of Juvenal’s early satires, themes which are skilfully foreshadowed in his programmatic poem, Sat. i. For I suggest that ‘perversion’ is the key theme in this satire, its two main examples being, first, the unnatural roles of the two sexes and, secondly, the servitude of free-born Roman clients to ex-slave patrons and their lackeys; the sexual perversion being emphasized throughout the second section of Sat. i (vv. 22-86), and the clientela anomaly being the dominant theme in the balancing section, vv. 87-146. And I suggest that these two forms of perversion are then fully worked out in the first three books of Juvenal’s Satires, the former, sexual perversion, in Sat. ii and vi, the latter, the clientela paradox, in Sat. iii and v, and both of them in the ironical self-exposure of the client-cumprostitute, Naevolus, in Sat. ix.