Taste of Swapping (2025)

This korean porn movie synopsis:

Da-jeong is introduced to a high-paying job through her boyfriend. It's to help Dr. Jang, whose mental age has stalled at the level of a teenager, with his trauma. Da-jeong uses sex to treat Dr. Jang's trauma.

Nara and Sori are a loving mother and daughter. Sori tries to find her single mother a boyfriend, but her mother refuses. While cleaning her room, Sori accidentally comes across her mother's diary and is shocked.