Lubricate to prevent chafing

I identified that, whilst at a leisurely pace it prevents chafing, talc is no good at pace when there's more friction.

So the obvious answer is Vaseline. I tried this last night and I applied it liberally. It prevented chafing infinitely better than the talc but there was still movement and therefore a touch of friction. I could live with it at these levels though but no doubt over 100km it will be less bearable. Next stop cycling shorts to limit movement to prevent friction further.