Can you believe Nina Agdal is only 23 and is already one of the most attractive women in the world? From Carls. Jr to Victoria's Secret and many more bikini brands, she was also in Sports Illustrated's Swimsuit issue. Today, she celebrates her 23rd birthday, and we're celebrating it together with her in this 23 hottest pics of her in the gallery:

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

11.

12.

13.

14.

15.

16.

17.

18.

19.

20.

21.

22.

23.