Pederasty or paederasty (US /ˈpɛdəræsti/ or UK /ˈpiːdəræsti/) is a (usually erotic) homosexual relationship between an adult male and a pubescent or adolescent male. The word pederasty derives from Greek (paiderastia) "love of boys", a compound derived from παῖς (pais) "child, boy" and ἐραστής (erastēs) "lover".
Referring to two adults engaging in pederasty is a contradiction in terms.
The Minoans probably originated the practice of pederasty in the area, from which it spread to the Dorian invaders of Crete and from them to the rest of Greece. But I'm unaware of any evidence at all that any of them ever called the relationship a marriage.
Same with the Sodomites. AFAIK, there is zero archeological evidence, mainly because we've never found Sodom. But the other Canaanites did not practice SSM.
Unless you've got some evidence I am unaware of?