Conversations with a 3 year old girl

Serena at breakfast:  These eggs are not good for my breast milk
Me:  When did you get breasts?
Serena: ummmmmm....last summer
Me:  It happens like that sometimes.  You go through puberty.  That's when a kid becomes an adult.
Serena....thinking hard:  That was the worst summer ever.  Me and Ella were pregnant and then we had to pee in a cup.