FC2 live adult
FC2 Live Adult is a Japanese site that allows people to broadcast and have the live show recorded so that they can sell the recording later. It wasn’t built for porn at the beginning but you know how it is, everyone pushes that limit a bit until they finally started the “FC2 Live Adult” section.
Unlike many Japanese cam sites or porn sites, FC2 has a good English user interface so even if you don’t speak or read any Japanese you will be able to navigate and find what you want there.