Got to see most of it after much buffering on the timeline. The guest guy clearly was desperately hoping that Alex was going to stick in her, but he just couldn't hold it back any longer. I hope the guest guy realizes that Anna and Alex don't do intercourse swapping. Only blowjobs and fingering are allowed. That has become very clear. He's hopes and dreams of fucking Anna will be dashed.
Oh, and don't see how you can say the girls were satisfied. Looked like they were done being given pleasure once the guys came. Ever heard of finishing off the girl?