he WOULD be that guy to go his whole life never sleeping with anyone and the first thing he does is get his guts literally rearranged. god bless his abyssal tainting for making his body more durable bc lord knows he needs it. he can't just be normal he's gotta go all the way. zhongli tries to tell him "we can take this slowly so i don't hurt you-- you don't need to be nervous i'll be gentle...." and childe has to repeatedly insist "no no i can take it i promise i can take it please i need this right now" both bc of horny desperation but also he has just subconsciously made Taking That Dick a challenge to himself that now he's gotta face and can't back down from