In the 2nd century AD, "there is a boom in texts about sex in Greek and Latin," along with romance novels. But frank sexuality all but disappears from literature thereafter, and sexual topics are reserved for medical writing or Christian theology. In the 3rd century, celibacy had become an ideal among the growing number of Christians, and Church Fathers such as Tertullian and Clement of Alexandria debated whether even marital sex should be permitted for procreation. The sexuality of martyrology focuses on tests against the Christian's chastity and sexual torture; Christian women are more often than men subjected to sexual mutilation, in particular of the breasts. The obscene humor of Martial was briefly revived in 4th-century Bordeaux by the Gallo-Roman scholar-poet Ausonius, although he shunned Martial's predilection for pederasty and was at least nominally a Christian.