My wife and I have had two children for both children, I had a bugout bag set up which included a book. Delivery takes hours, it's often quick near the end, but we had to wait through contractions and dilation. It is not normal to watch porn in situations like this - one can argue that pornography, outside of kink shows, or art exhibitions is meant for private consumption.
It really depends who you're friends with and if they are actually cool with it. Some friends will share stuff with me (and vice versa) but most people I wont.
yeah it basically boils down to consent if everyone there consents to it and is capable of giving the consent (here assuming the same for the people in the porn) then it's fine
Arguably there are compications because someone's significant other might not be thrilled but that's just regular sex stuff