If anyone is interested in another yuri manga focused on kissing, I would recommend this one. After School by Oshima Towa. https://mangadex.org/title/1b46b76c-bd79-4d42-8b21-e199993fee49/houkago
Did you not see that part in the story where the high school girl kept persistently going after the adult woman with the intent to build a romantic relationship together and how the adult kept trying to turn her down?
There’s a similar manga called “The Tale of the Teapot Hero's Revenge”. It’s about a girl who was wronged by her kingdom and lost everyone she loved, so she uses her new power to seek a brutal revenge on her enemies.
It looks to be a sequel set after Akira leaves and Myuu and Riri take over the tea ceremony club. The two new girls in this chapter first appeared at the end of chapter 7.
They’re not futa. In an earlier chapter, they mentioned that reproduction worked with some sort of glad system rather than using an “additional appendage”.