That all sounds normal for a first date and fairly positive, but just to be clear, was this in neutral space???
Make sure you are in a very neutral space for any bonding sessions in the future, it’s super important!
Other than that, you can definitely do another session tomorrow.
I find it helpful to set short time goals in the early stages, so I’m not tempted to push things too far (the temptation is very real when things are going well!).
When one bun tries to mount (which is normal), you should allow it, but if the other bun tries to run away, prevent the other bun from chasing. You can also pet them both and kind of press them into the ground when they approach each other if things are getting tense.
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The answers provided in this discussion are for general guideline purposes only. The information is not intended to diagnose or treat your pet. Seek the advice of your veterinarian or a qualified behaviorist.