Shina is a 25-year-old woman who responded to our online casting call. Having worked in customer service, she speaks politely and calmly, giving off a gentle and approachable vibe. Her hair is well-maintained, and I jokingly commented that her room must be clean too—she happily agreed, clearly flattered. Her reaction showed she's considerate and easy to like. Currently, Shina is in an affair. She's been involved with the man since before he got married, but their relationship has always been purely sexual. He's usually the one initiating, and she feels like she's often just used for sex. Not wanting to step on any emotional landmines, I decided not to dig deeper. Normally, she has sex with this married boyfriend who loves to dominate—she's often left breathless and overwhelmed by his rough treatment. Hearing that, I told her I wanted to make her say "I can't take it anymore," sparking a flicker of anticipation. Her blowjob technique, trained by her boyfriend into a buttery, tongue-lashing dog-like style, is still quite impressive, though slightly adjusted. Honestly, it's not extremely pleasurable, but there's a strange, thrilling sense of taboo. The sudden shift from teasing to deep-throating delivers an intense pleasure gap—that's one of her charms. Perhaps due to constant stimulation from her boyfriend, she's extremely sensitive; even a light stroke on her ass makes her react instantly. Today, I'll borrow this girl—carefully developed by her regular partner—and enjoy her to the fullest.