Lube with BBC

Hi all

As we are really looking forward to mrs tlove's hopefully first BBC during our trip to vegas soon we need some advice.

Mrs tlove has a rather tight pussy (she is 5'3''). I am not small but clearly not a BBC. But even with me her pussy needs working up before I penetrate. Also clearly we'd like to meet someone with a large black cock. Is it recommended to use lube? Or is it cheating