Onodera Mai silently devours her younger sister, who's just starting out with cosplay. (YST-336)

Mai-chan, usually shy in public, gets excited and energetic when cosplaying. This day, however, is a cosplay photoshoot with her brother and an older man she knows! She's subtly guided into erotic poses. As the atmosphere becomes increasingly suggestive, she's penetrated by their massive penises, stuffed into their mouths, and even her vagina is penetrated by fingers and penises. She's panting as she's subjected to unprotected sex. Of course, she gets penetrated, but she seems to enjoy it immensely!