The Cornered Mouse Dreams of Cheese is a boys’ love (yaoi) manga by Setona Mizushiro. A live-action film version was released in Japan in 2020.
It stars Tadayoshi Okura and Ryo Narita in the lead roles. It is directed by Isao Yukisada, who also made River’s Edge, which had great nude sex scenes with Fumi Nikaido and Shiori Doi.
Naturally, given the subject matter, much of the film focuses on the gay relationship between the two men, but there is one nude sex scene with a female actor.
It’s with Noriko Kijima, who is no stranger to filming nude scenes in several films. She shows off her breasts in the sex scene and her lover sucks her nipple greedily.
The up-and-coming Honami Sato also features in her underwear in a bed scene, giving a hint of the rocking body she has. Sadly, though the scene takes place in a love hotel, she stays under the sheets. We have to content ourselves with a bit of her nude back and a flash of side-boob.