In general the view on sex seems to be inconsistent with some sources saying Nahuas were intense prudes with sex not being tolerated unless you were married and over 20 years old while other sources say the they were "deviants" with sexually charged rituals and customs.
Some sources say they pushed marriage hard, but other sources say that was not true and the region had "holy" prostitutes that filled a holy role in the philosophical and religious thought without marriage being needed.
What exactly was the relation between sex, love, and marriage in Nahua thought?
More can be said, but these magnificent answers may prove helpful.
[How was homosexuality generally viewed by native Americans, pre-colonization until American revolution?] (https://www.reddit.com/r/AskHistorians/comments/7hvw59/how_was_homosexuality_generally_viewed_by_native/dqw749d/) written by u/400-Rabbits
and
Mesoamerica was accepting of "Xochihuas", men who identified as women and even served as concubines to kings and were "children" of multiple gay gods, but the Tlatoani of Texcoco banned sodomy and homosexuality. Why is this? written by u/jabberwockxeno and u/400-Rabbits (you may find their answer in the thread to be more relevant to this question)