Rome had "prison" homophobia - no big deal if you're a "top", but a major shame if you're a " bottom".

They also greatly stigmatised cunnilingus.

Hellenistic Greeks were very tolerant, by contrast. I like that passage in the Anabasis, where (hetero) Xenophon is gently teasing his (gay horndog) friend for the risks he ran for some good looking guy.