Can you explain why most boys have flat butts?

Girls’ butts play a certain role in secondary sexual characteristics

I remember seeing an introduction to DISCOVERY before

The reason why girls’ buttocks are round and big

< p>Let boys think of the big breasts in the front when viewed from the back

The next generation will be easier to raise

There is no need for boys

As long as they are big in the front Got it!

Laughing wildly...hahahaha