I watched The Lighthouse with my dad a few years ago and I think that was the most awkward movie watching situation I’ve been in. We decided to watch it because it had Willem Dafoe on it, a positive rating, and it was on a streaming service he had. It’s not really a spoiler but the movie has multiple scenes with a focus on masturbation. Neither of us turned it off because we kept assuming that was the last of it and we would have had to get up for the remote.
I was thinking Urotsukidoji: Legend of the Overfiend.
But there are, for whatever reason, so many possibilities for what it could’ve been (including the mostly live action Demonlover)