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MUDR-400 I ended up witnessing the intense self-pleasure of my shut-in younger sister, and was appointed as her dedicated support partner. Uruki Sarara
I never imagined my little sister was skipping school, shutting herself away, and acting so strangely! I always thought there were weird noises coming from her room… Even after I found out, she just acted shamelessly and started pleasuring herself with me? Hands and toys are fine, but the real thing feels the best! She’s enjoying her private self-pleasure life with her brother as a convenient stand-in whenever she wants!
AvMates Insight
MUDR-400 is one of 123 videos featuring Uruki Sarara (宇流木さらら).
Her most frequent collaborator is the maker OFFICE K’S, which produced about 7% of her total works.
For a full list of Uruki Sarara’s works, see the Uruki Sarara JAV playlist .












Video Information
Release Date:2026-08-14
Product Code:MUDR-400
Series:
