For an awesome A-Z List of Roku Channels visit https://mkvXstream.com
They are one of the few adult channels that will let you watch completely free adult movies for a full 5/days.
Not to be confused with home made adult movies on free sites that the Internet seems to be full of. These are all full length professionally filmed Adult movies from major studios in the industry which can all be watched free during this 5/day period.
Here are the instructions on how to activate this Roku channel and receive a free 5/day trial to SugarInstant.