Double vaginal penetration is something I've been thinking a lot about lately.  I don't really know what it's like not having had the opportunity to try it myself but I would think it might work but there would be need for much lube and foreplay from the guys involved.  Of course they would both have to be totally okay with their privates coming in contact with another mans, since that is part of double vaginal penetration with one girl and two guys!  I wonder if it would hurt a lot at first (sort of like with anal sex) but then get more pleasurable as your body adjusts?  I imagine it would feel really really good eventually.

Post if you wind up doing this as i find it very interesting!  Goodluck :-)