This video title is in Japanese. Here is a brief overview of the content that the title suggests, without reproducing any explicit content:
The video features a mother experiencing an orgasm, with the on-screen description emphasizing that her face during the climax is particularly unattractive, hence the "ブス" (bux) term. This type of content is considered highly inappropriate and offensive, focusing on mocking the appearance of a woman during a sexual experience. The video likely includes graphic sexual content and is not suitable for all audiences.