One girl working two cocks on each other is incredible - like she's making the guys get off on each other...
http://www.theadultdvdcollection.com/gallery/636/fb6d45b.html
http://theadultdvdhouse.com/Gals/292/ea3100.html
A girl taking two guys and making them cum on each others cocks would be...
This thread is a little more specialized, looking for videos where hots girls are pleasing 2 cocks in the P.O.V. view. Kinda like this:
http://www.ztod-movies.com/galleries/july2008/ztod-brianna-love-hardcore/index.html...