I've had various bi experiences both as a couple and as a single guy.
Can be HUGE fun, and as has been said already, if the female side of the couple is interested in experimenting, and even encouraging setting something up to explore it, that is by FAR the best scenario. My ex got REALLY turned on by it, and as a result, all had an AMAZING time. It's been the same with couples I have met, if the mrs is the one driving it, it's usually a fantastic time.

