I recently had a birthday, and I'm not ashamed to tell you I'm 35! I'm not saying I'm 35 because women over 35 always say that ... I'm saying it because I had Thing 2 when I was 31, and she promised to stay four forever.
So, you do the math ... I was 31 when I had her, she's four ... 31 + 4 = 35. Math doesn't lie, folks.