When I watch porn to PMO, I need to open 4 different porno videos to watch at the same time on my computer so I can get off since one porno video is not enough. On VLC video player, you can play 4 different videos at the same time just that you have to uncheck "Allow only one instance" and "Use only one instance when started from File Manager" under Tools>Preferences.
During long edging sessions I typically have 2 laptops and a TV going with porn. It’s fun having different styles playing, on multiple screens. The mix of all the moaning is intoxicating!