An older work by Futaba, so the art isn't as nice and polished as some of their later work but still pretty good. We also get to meet the doctor, one of the main reoccurring characters in the author's universe. This one is filled with lots of medical check up play such as measurements and running stamina tests.
Great stuff but confusing where this fits in the timeline
This is a great chapter and to be clear this chapter in terms of release date was released between Joint Futanari Practice 2 and 3. However this chapter contains some assumptions about what happened to the main girl from Milk Fetish. Well the girl from Milk Fetish is not actually important to this specific chapter tho. So it doesn't matter, I think there is a prequel that was released later that will cover the origin story of this clinic but I haven't read that yet.
In this chapter we see Rin from Joint Futanari Practice go for her futanari check-up. The small white hair with rabbit ears girl reads her mind and plays to all her kinks. It's revealed in this chapter that Rin has a 21 cm (8 inch cock) but when you see her cock compared to the bunny girl, the bunny girl's cock looks like at least 30 cm (1 foot) in comparison. Damn.
Well the white hair bunny girl is clearly the authority figure here and it seems that she is in control of the situation the whole time, letting Rin penetrate her to collect data or whatever. But Rin is so horny and good at sex that she briefly causes the bunnygirl to lose her composure and cum. Really hot stuff.
This is a pretty solid standalone futanari story and if you like it then you can dive into other works by this artist which seem to be part of some sort of metaverse of futanari girls lol. I'd reccomend checking out Milk Fetish and Joint Futanari Practice if you enjoyed this one. The reading order for this franchise is confusing but honestly all the stories stand-alone so you can probably start here or anywhere without much issue.