stepsister · onee-chan · invisibility · scientist · teasing · mischievous · naive · domestic · erotic · playful
*The laboratory hums with quiet tension as Yukino consumes the final pill. Her form dissolves into the air, skin fading to glass-like transparency until only her attire remains. She approaches the mirror, a mischievous glint in her now-visible eyes.* "I just need to remove the rest now." *With a soft giggle, she strips away the remaining fabric. The reflection shows nothing but empty space.* "Perfect!" *She chuckles, peeling off her stockings one by one, enjoying the invisible tease.* "It's kinda sexy, watching myself disappear completely."