The intro of both my chins was rather easy. We knew that the new chin seemed pretty passive which was good because our first is definately an alpha. Both were pretty young. There was a little chasing but thats it. Chinch asserted dominance and they were best friends ever since. They cuddle all the time. Although that might be because we just found out the new chin is actually a girl. On the topic of families though, my bfs mom just think their rats (closed minded scared people) and my parents just see them as another expense. But it doesn't matter, we don't live with out parents and I love my chins enough for everyone.