you guys ought to think of having a session in a gay sauna. For the entry fee (usually $20 or so) you get a sae venue, free condoms, lube, towels and showers. You can stay as long as you want at most hours of the day until very late at night and they usually have plenty of numbers already, plus different kinds of rooms and glory holes. Just plan to meet at a certain time with each other or whatever. Lets everyone keep some privacy and not have their neighbours know about it too.
I went to one for the first time in sydney last year and it was one of the best things I've ever done. I'd sucked off a couple guys in gloryholes in adult stores, but this is way better. I still go about once a month.