When I Awoke, I Found That I Had Been Creampie Fucked... Aki Sasaki - Kaoru Mashima

Kaoru Mashima is a mother who engages in a creampie sexual relationship with her son, Aki Sasaki. She seduces him and they have intense and intimate encounters, with the mother taking the lead and guiding her son through their experiences. As their relationship deepens, the mother becomes increasingly possessive and controlling, trying to erase Aki's feelings for another woman, Mari Rika, and making him focus solely on her.