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XVSR-840 Suggestive Big-Butt Instructor’s Tempting Personal Training: Yuika Onosaka
Instructor Yuika Onosaka, known for her bold and eye-catching figure, passionately tempts her male students! With a flexible pose that shows off her signature curves, she captivates everyone around her. In a balance-ball lesson for new members, she gives hands-on guidance and strongly draws in the students with a sweaty, form-fitting gym outfit that leaves a lasting impression. In the end, the students can’t resist her striking presence, and the intense session reaches a dramatic conclusion. Her provocative “sexercise” routine, highlighted by her impressive figure, is a must-see.
AvMates Insight
XVSR-840 is one of 244 videos featuring Onosaka Yuika (小野坂ゆいか).
Her most frequent collaborator is the maker Idea Pocket, which produced about 5% of her total works.
For a full list of Onosaka Yuika’s works, see the Onosaka Yuika JAV playlist .

















Video Information
Release Date:2025-10-04
Product Code:XVSR-840
