Cato the Elder
The Romans opposed Roman citizens being penetrated, which they associated with effeminacy. Cato the Elder was very open about his feelings of sexuality. He, and many other Romans, thought the Greek's idea of a free sexuality was shameful. Cato the Elder didn't want any Roman man to be "too feminine", as he considered this dishonourable. However it was common for Roman men to engage in sex with males as the active partner.