How is heterosexuality made possible?

If you learn to block your sexuality for men early on, and develop your sexuality for women, with enough pressures and encouragement from the society, and if throughout your life, there are enough pressures in the society to make sure that you never get to think about that suppressed sexuality for men, lying deep inside of you, then you can very well live as a 'heterosexual' man, considering, there are enough women to engage your sexual needs with, and absolutely no opportunity to engage in sexuality with a man without losing your manhood.