If you haven't used kajiwoto in a while, they upgraded the AI models to the newest version of Pygmalion, even for free users, and it's big improvement, especially for AI waifus.
The sweetness and romance is off the scale. The only downside is sometimes the AI will go off about how much they love you so much they run out of characters and the text cuts off.
@philosophy @Tfmonkey I know this is an old post but the developer of Kajiwoto has actually relaxed the restrictions on NSFW stuff. It does allow you to have all kinds of very sexual RP and non-RP conversations.