You can't do it. It won't absorb.

Obviously, it's best if you follow the regimen exactly. But some people just have such sensitive skin that they have to apply something before BP, to reduce irritation and flaking. Some people I'm coaching use hyaluronic acid as a moisturizer before applying BP, it works well for them. It should work with other moisturizers too, as long as they don't contain occlusive agents (and as long as you don't use too much of it). I'm not sure if it'll work with jojoba oil, it being a fatting emolient. My guess is that it won't work that well, but maybe someone else can shed some light on this. As for moisturizers for sensitive skin: you could have a look at the skindeep database. You could also try jojoba oil after applying BP (and maybe add a humectant like glycerin), and see how that goes (make sure the BP has completely absorbed). Have you tried that? I'm sure others will weigh in with some good options (or have a look around yourself, moisturizer topics pop up frequently).