Anata ga Amaku Nedaru Made - Vol. 2 Ch. 12 - Secret Techniques

[MangaDex]

 

[bonerland]

Thank you for translating. God I need a girl like this.

 

[Noy_Telinu]

Yeah, finding a good word for it is difficult. Gentle Femdom teasing is a thing but not a job...

 

[dibblee]

The prostate is awesome tbh

 

[phoenixir]

Popping in with an explanation:
Sadist is the right word. It doesn't just cover someone who likes to inflict pain. Yuki's kind of Sadist is the type where she finds thrill in intimately tormenting Haru.