Bonded buns humping

[Starah]

My two mini lips have both been fixed and bonded for just coming up to a year now. The bonding process was so easy for these two, I think it’s because they were from the same litter and kept side by side until the time came to bond, so they always knew each other.
Anyway, just lately Pascal has started humping Patsy. When he does she runs away and he chases her a bit then gives up. I don’t know if I should be stepping in or jut letting it run it’s course?
I’m also concerned as Patsy has an undiagnosed health problem (we’ve had many trips to vets and specialists so have a vague but not certain diagnosis) she had been suffering with it since around March or April, so pretty much her entire life and more or less their entire time bonded. After several different tries we now are able to manage her condition with medication which she is super about taking.
As I said she’s has this pretty much forever and it’s never been a problem for them but, I have heard humping can indicate a health issue. So, does anyone have experience of this? How likely is it that Pascal is trying to tell me that Patsy’s health has gotten worse? Or is this just a natural part of the bond and I’m over worrying it?

[MoveDiagonally]

I’ve not heard about humping being indicative of a health issue.

Bonded rabbits will sometimes hump each other. I wouldn’t worry about it or intervene unless it’s causing fights or noticeable stress.

[JackRabbit]

I don’t know about the health problem part, but my lops are half brother/sister (born 3 days apart) and have been together the same as yours. Moshi is the dominant bun, but there is occasional humping, usually if Moshi does something to annoy Marlee. She will chase him, bite his butt, he’ll run until he’s had enough then he’ll hump her, she’ll pout a little then groom him and its over.

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