Over the course of my entire game I have been trying to phone each of the protagonists in order to get this trophy. Each time I successfully 'Hang Out' with one of the characters the other one is always unreachable (busy tone on their cell) or not interested.
What is the easiest way to get all three characters together in order to get this trophy/achievement?
Secondly, there are obviously points in the story where this is not possible due to certain characters being otherwise occupied. Is there a best or easiest time to get the characters together?
Specifically:(End game spoiler)
I want to know if it is still possible to get this trophy in post game. I choose option C: Deathwish which resulted in all three characters surviving (and becoming friends again) but I still can't get them all together?