I mean something like this. Its one of my favorite videos.
http://www.you jizz.com/videos/russian-ama teur-three some-2183542.html
She sucks the first guy and then he starts fucking her. The next guy comes in and kisses her and eats her pussy no problem. Which is exactly what I would do. My favorite part is around 14:20. Guy 2 is fucking her as shes sucking guy 1. She turns around and starts kissing guy 2 and he doesnt care that she had a cock in her mouth 2 seconds earlier. Theres some more pussy eating. This is how you should double team