Notwithstanding the 'desirability' of bareback or otherwise, this in itself doesn't vastly increase the risk of contracting Covid-19 off her.
The fact that you'd be spending an hour in her gaff in close proximity, where other guys have spent an hour in her gaff (and they all have their own families, networks), you're kissing each other, hands everywhere, breathing on each other...
The bareback aspect falls into relative insignificance.
It's the very fact of seeing her which puts you at risk.