That’s sounds like I need to try a paw-paw sometime soon!
Well now is the time, depending on the variety they are ripening from September to mid October.
PawPaw; Variety Sunflower is supposed by some to be self fertile and does not require 2 pawpaws to germinate
However! https://www.houzz.com/discussions/1856630/is-the-sunflower-paw-paw-self-fertile-and-other-q-s
https://onegreenworld.com/product/sunflower-2/
https://ediblelandscaping.com/products/trees/Pawpaws/SunflowerPawpaw.php
Good luck!