... at the girl, who seemed to be somewhere else as she stared up at the ceiling. Tears were rolling down the sides of her face.
"Guess I'll have to bring you back to Earth." Gently, slowly, she took her knuckle and rubbed it along the crease in the satin fabric. Her little sister's body rocked away from the touch, but it wasn't enough to escape it. Frida winced as if it hurt; Nikita knew full well it didn't.
"I can feel you getting wet," she said as she continued rubbing for a few more minutes. The moisture underneath the underwear was increasing with every stroke, and her fingers were getting coated in the warm, tantalizing liquid. Meanwhile, Frida was making soft moaning noises against the gag, tossing her head this way and that. All of it was turning Nikita on more and more, until finally she couldn't take it anymore. She pulled aside the fabric- so…beautiful…- and thrust a finger inside. A grunt escaped from the recipient's mouth. Nikita moved her finger around in tiny circles, feeling the soft succulence of the little girl's inside. She let it rest in place for a few seconds, rejoicing in the sucking sensation going on around it, then hauled out. Her finger was as warm and as wet as a dog's tongue.
"Wow," she acknowledged, staring at it. "You're hungry. I almost brought you to the edge, didn't I?"
Frida opened he...