S Sensei no Koto

Yaya and Haruya Their stories seem similar yet differ, and though distinct, they are closely intertwined. The tutor who came to the Yayama household. A kind and beautiful older sister-like teacher.

However, she is a “dick-loving lesbian,” meaning that she is also a homosexual transsexual. With overflowing affection, yet mercilessly, she baptizes them both into the world of “dick lesbianism.”

The teacher's sexual perversions relentlessly develop the bodies of the young boy and girl, sadistically dragging out their immature sensuality...

Their loneliness has them starving for affection. So they easily accept their new teacher. The teacher's affection and dick, transform them into lewd sluts.

Bathed in the teacher's sadistic baptism, They both discover new things about themselves.

[From getchu]