Mom of a four year old and three year old here. They surprise me everyday, but some things that really stand out are: Their little boy brains are like predestined to gravitate towards "boy toys" such as trains and construction vehicles. I mean, sure if I give them a Barbie doll they will play with it, and enjoy movies like frozen and tangled, but if we're at the toy aisle they run to the boy section. It really has nothing to do with what I provide them with. They pick. Also, they discover themselves REALLY early. The other day my four year old says "mom, my peepee is getting big!" I say, okay that's fine. He laughs and says "it's growing big like a bean stalk!" It was hilarious. And lastly, boys are so sweet. They really do love their moms. I am constantly getting kissed and hugged and it's the best. They love dad too but when they get hurt or are sad it's right to mom no matter what. I love having boys. I think if I had little girls that are just like me I think I'd be miserable haha.