Just because they’re really tiny doesn’t always mean that they aren’t sexually mature. I wouldn’t worry about the lil bun being scared as it will be scared because it is in a new place with new people. The fact that your previous bun didn’t try to chase the intruder away is a good sign. It is also possible that there is some “mothering instincts” coming from Lola.

I would wait until they’re both fixed. Check with the vet as to how soon that could be for your new bun.

definitely wait until at least Lola is fixed for a full month, if not both. if you don’t know how old the second bunny is, it’s better to err on the side of caution. by all means, they can caged near each other, but make sure to leave a few inches between them at all times.

Ditto-You don’t want to be in trouble with an accidental litter! At least one should be fixed.

In the mean time, get both of them a stuffed animal (appropriately sized, good material that doesn’t pull out easy) and put in each of their cages, after a week (so they have the scent) switch them. Now they have a pretend friend, who never bites them and smells EXACTLY like that new rabbit- I think this should help bonding when the time comes.

When you do an introduction make sure it’s neutral territory-somewhere Lola’s *never* been. Bathtub is usually great-line with towels.

Signs of aggression are obviously growling, but also pinning the ears back, charging, going for the bum. Humping can be allowed as long as it’s short lived, tolderated by the other, and not on the face (nipping-..). But that’s a while, wait until at least one is spayed!

Ohhh and congrats on your new bunny!! When do we get pictures!!?!?!

CUTE!!