Exactly - I ask every potential SBs about their sexual boundaries / kinks on whatsapp or video chat or coffee meet, including if they are ok with BB. If they say yes or maybe, I just tell them its a deal breaker and goodbye.
Obviously some of them might lie and get away with it but a lot of them also answer with a very firm no, which is reassuring.
Fair enough mate, but as per people's posts if you've been reading them, reality is that BB is something which often "ends up happening" rather than necessarily something a girl has expressly in mind. In my experience, provided they are on birth control, a lot of girls (especially under 30) are just really not that bothered by condoms. They might know they shouldn't go BB, but they do, and without thinking it much of a big deal. I have had a girl say (because neither of us happened to have a condom) as we were undressing (on the first date) "ok but promise me you're clean"

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Anyone here who ever has non-paid sex with civvies will also be able to vouch for this.