Aaron | Aria
He is the child of Kyle and whichever bachelorette that Kyle married. Aaron is very determined, kind, stubborn and apparently a bad liar, like Kyle. Although they are never shown together during game play, Aria and Aaron are twins, as shown together in the second opening video.
Aaron is only playable in the 2nd Generation and only if you chose a son in the first generation. In the 2nd generation, he is portrayed as a 7 year-old child who is looking for his father and will do anything to find him.