It depends on how well we know the bull. My best mate has been fucking Gina on and off for years and he's never used a condom. If it's play at a swingers club with someone we don't know, then condoms are a must every time. My wife's current boyfriend is married and someone she has been dating now for four months, so he fucks her without a condom because the comfort level is there. Everyone prefers without, we just feel it's about being sensible when the moment demands it, and being more relaxed when the opportunity is there to do so.