Why does Ciara have all of her FRIENDS boyfriends, ex's or husbands in her videos?

There are over 6,000 BILLION people people in the world and the only guys that were cast in Ciara's "And I" and "Like a Boy" video's were Kim Kardashian's Ex Boyfriend Reggie Bush and Lala's (now) husband Carmelo Anthony. How does one go about asking if "your boyfriend could be in my video?" Strange.... Ciara were watching you....