I just loooove timeskip story's. ^^ I'm working with one fic right now, which is a timeskip story... and yes, you guessed right, it includes BokkunxCream. I just love that little bomb-boy~ <3

In this pic, Cream and Bokkun are around 14.

EDIT! I forgot to explain little about my theory of Bokkun. It also explains, why he can get older. ^^
In Sonic X, there's few robots who has feelings, but Bokkun is the biggest expection of them all. I know it's a serie for children, BUT... How you explain, that he does all kinds of things, what a robot isn't supposed to do? Like: crying, blushing, eating normal food, have different feelings, fall in love.... He also moves like he wouldn't be a robot. SO... what this kind of fangirl get's into her mind then? A theory!
Bokkun is not totally a robot. Part of him IS an animal, but he was seperated from his parents when he was baby. Eggman decided to create new kind of robot, which was opposite what he had done earlier. He didn't put the animal inside the robot, but a robot inside the animal. Bokkun has different robot parts and he couldn't live without them, so he needs some oil, but some normal food as well. Though... Eggman didn't know, that the animal side would effect so much, that Bokkun would actually grow up.

More about this is coming into my fanfiction! ^^)