This is the full ambidextrous variation of the 8-count 5551 popcorn (you dreamt about it, we made it a reality!). All you have to do is add an extra self. In order to do that, one of you must throw tramline passes while the other responds with diagonal passes. All passes have are single spins and must be as floaty as possible.
The beginning is the same as in the 8-count. The sequence becomes: triple, triple, triple, feed, pass, self, self, self, self and repeats on the other side. Throwing doubles instead of triples will probably be easier here too.