Yeah, nope, checks out. If eating pussy estrogenises the male body,... nope, we can't have that. The logical solution is to instead suck as much dick as possible to testosteronise the body as much as possible in order to strengthen your hetero biochemistry.
Fun fact: the opposite of estrogenize is in fact to androgenize. No relation to androgynize with a Y, they're just one letter apart and for many speakers 100% homophonic, but they're very different in meaning, if we're talking about men's sex hormone intake.
Maku: This is the first rite of passage for the boys. They are separated from their mothers at this stage and participate in bloodletting (where long sticks are inserted up their nostrils to make them bleed), therefore ridding themselves of their mothers' presence in them. The Simbari people do not believe that males are born with semen and so, during Maku, the boys participate in fellatio. They are also required to undergo a strict diet during this time period, which is from age 7–10.
Imbutu: This stage is filled with camaraderie, male bonding, and rewards for making it through the first set of Rites.
Ipmangwi: During this stage, the boys begin to go through puberty, and they no longer need to participate in fellatio. They also learn gender roles, and how to have intercourse. Once they have learned this, they look for a wife and marry during this stage. It lasts for three years as well, during the ages 13–16.
Nupusha: During this stage, the males get married and have intercourse. This stage happens only after the others have been completed, and they must be at least 16 years old.
Taiketnyi: The males undergo bloodletting again during this stage, as their wives have their first menstrual cycle as married women.
Moondung: This stage is when the women give birth to their first child. This is the final step, and signifies completion of the Rites of passage. They can now be considered full-grown, respectable men.