I have Chunky & Jasmine from Lexie's first litter. Jasmine has finally gone into her 1st heat cycle, and Chunky is her little protector, don't worry mine are diaper, seperate, doors close you name it, I know how these little monkeys are, but he sits next to the gate I put up when I am home and growls at the other boys if they get near her. They don't look a thing alike, but act the same a lot of the time. Sampson came here when he was 12 weeks, not much younger than the two, and the three of them are together all the time, Monkey see Monkey do.