Yes I've used that one and played around with a few similar tools. Quite impressive.

There was one on Show HN this week: https://hackernews.hn/item?id=36864383

Pornpen was on Show HN a while back: https://hackernews.hn/item?id=32572770

AI vaginas look realistic now, people created LoRAs that can be used with stable diffusion to make realistic looking ones. No specific reason that I only included above the waist.