I had typed out a response earlier today and it threw an error. That said it pretty much the same thing as Holly's. I would be willing to be most other replies would be about the same. Communication with your partner before during and after is key to a good experience. Go only as fast as the slowest person involved and be sure to respect and follow everyone's rules. Oh and in that regard make sure you discuss such things up front with your perspective playmates. Just one of many pitfalls that can ruin an otherwise good time is finding out that the folks you decide to swing with refuse to wear (or require) condoms and you feel differently once everyone is naked. Be honest and open then expect the same. Sometimes getting all of that out and discussed before even meeting up saves wasted time. It also would be a red flag if certain things were discussed and then not followed or attempts were made to not follow or change minds when it comes time for sexual activity. Do not be afraid to call a halt to things if they do not feel right or you need to take it slower.
BTW I realize I took an approach on the less than positive things but a lack of honest communication can lead to a bad time. It does happen and it seems some people it happens to more than others especially when starting out. That said when things go right you may just have that "puppy pile" where everyone having fun with everyone else assuming everyone is into it. Keep in mind even if everyone is Bi there needs to be a basic attraction for that to happen and if everyone is not Bi keep those limits even if in close quarters.

