How did the prophet muhammad (pbsl) remain chaste before Islam?

I want to know how the prophet(pbsl) remain chaste before Islam was revealed. He was 25 years old when he married. Considering that sexual desires starts occuring at around 14-15. Considering that he was good-looking therefore would probably get stares or indirect invitations from women (a.k.a women trying to seduce him). Considering he lived in the age of ignorance. Even if the shaytan companion (Qarin) was removed from him when he was young this does not eliminate his natural sex drive. Would like to know if they are any authentic hadiths about the subject.