Due to economic downturns creating a buyer's market, the term "underwear salesgirl" has become increasingly common. Surprisingly many young women are selling their worn panties for 3,000 to 5,000 yen to get through financial hardship. This time, we met Momo (22), a slender, fair-skinned beauty. She had worn the same panties for two days, and when we checked them on the street, the contents were completely unclear, so I explained we could do a fresh removal shoot. We headed into a love hotel. Being alone with this beautiful office lady made me slightly nervous, but she didn't seem to mind at all. After explaining the concept, she readily agreed to leave a stain as well. Her attitude was incredibly perverted—when I used a vibrator on her, she kept working diligently, burying the toy deep into the crotch of her sexy string panties while whispering, "This is so embarrassing..." Her expression turned me on instantly, and my tension vanished—soon, her true lust emerged. "This isn't what I intended..." she gasped as I attacked her with an electric massager, moaning as she inspected her own panties. I took the chance to check her pussy too, spreading her open to confirm she was thoroughly wet. Ignoring her blushing plea of "Don't look!", I started sliding my fingers in and out, making loud, squishy sounds at her entrance to heighten her humiliation. Feeling her body go limp, I shifted her bra aside and savored her rare pink nipples with my tongue. I then gave her anus its first-ever lick, discovering she preferred physical male stimulation over toys. With her wetness fully confirmed and a proper stain collected, we moved to the main event. As negotiations progressed, she eagerly pumped my cock hard. The moment I flicked her nipples and let her touch me through her panties, her whispering "It's getting bigger!" sent both of us into peak arousal. We licked and were licked, I deeply devoured her peach-like ass from behind, and she rode me cowgirl-style like I was her toy. In the end, we fulfilled each other's desires in an intensely satisfying sexual encounter.