Hakari-san, a Science Major Who Measures Everything

Femdom + short hair + busty + ripped pantyhose + black choker + tall girl is my life blood! Those thighjobs were unreal!
After 2 years Yatsuki Hiyori is back with this blazingly hot femdom chapter.

-@69titty69, I gotcha lol. Then there's the true Crème de la crème, Tall girl + petite + femdom + yuri.
(I enjoy both tall and petite femdom, tall cause they're larger and more physical and petite is more manipulating and bossy. Either one is a treat lol.)

-got the kuudere tag added. Not for her being a mute or not going crazy during sex but more for her cold calculating demeanor.

If there’s an actual medicine that can grow penis size, the creator of that medicine would be a trillionaire within an hour.

Suffice it to say that, by the end, MC discovered he was the main subject of a sex-periment by his Sexy Onee-san Scientist Senpai. And she seems most Satisfied with the outcome.

Conclusion: "Today Was A Fine Day For Science."