Danberu Nan Kiro Moteru? - Vol. 19 Ch. 166 - Preacher Curls

[MangaDex]

 

[ColorfulSongbird]

I never noticed until looking at a thumbnail, but Page 11 (the motivation page looking top-down on Sensei) has her bicep lines matching the curves you can expect from her breasts, like you can imagine her arms are mostly transparent and you can see her chest shapes just beneath.
Sexy.