The question was posed. The mortal man knew he was in a heck of a fix. On one side was Hera, the obsessively jealous and insanely vindictive Queen of the Gods and those who sided with her. On the other side was the omnipotent King of the Gods Zeus and all who sided with him. Tiresius decided to tell the truth.
Women enjoy sex more than men.
In many more different ways. For longer periods of time. So much more in fact that lots of societies go out of their way to be sure they can't enjoy it. Terrifies them, you see. You're obviously blind to the truth, therefore blind you shall be.