I brought the new bun Diana home today, her and twiggy are in their bonding pen. When we first put them in, they kind of ignored each other and seemed indifferent to each other, then they started sniffing each other. After quite a bit of sniffing twiggy started mounting her, only lasting a few seconds each time, at first she just ignored it/accepted it, then she started running away and has thumped a few times. The mounting had died down and now they are eating hay and just doing their own thing, Is this good/bad? is there anything I should be doing to help or shall I just leave them to it? There has been no fighting or anything like that, but they have not yet groomed each other. I should add that they have been together just under two hours.