Just please don't buttswing over other users and role-play any of that 'mating' in local chat or public maps/areas, use a private chat such as Whisper, Group or Party. We have younger members on here that do not wish to see any 'mating' going on.
With that said, I'd say yes to that as long as it is approved by that 'mate' of yours. Unless it is a pretty realistic role-play such as a wolf pack, lion pride etc... Then you're pretty much free to do so depending on the group rules and such.
I will close this conversation, it has been explained pretty clearly and this topic could possibly become rather awkward.
If you have any questions regarding this, feel free to PM me.