Yamagata was sitting on her bed, her pants already off of her. She quickly tried to slip her panties off, mumbling to herself. "S-shit..." She covered her mouth as she slowly inserted a finger in, making sure she wasn't making any noises that would alert anyone in the other rooms.
She kept thrusting her finger into herself, quietly moaning in delight. She inserted another finger, keeping a steady pace. "F-fuck...ah~" She sped it up, failing to keep her moans suppressed. 'Shit , they're gonna hear me...I can't stop...I don't want to stop...'
She kept thrusting her fingers in, going as fast as she could. She covered her mouth as she heard someone walk by her room, trying to stop anymore lewd noises from coming out of her. Once she heard the person walk away, she started going faster again. "Ngh~"
She put in a few more thrusts as she came, letting out a loud moan that alerted the whole household to what she was doing. She took her fingers out and started to clean the mess up, putting her panties and sweatpants back on.