Teaching Winnie

Winnie came back for a stretch she already knew, but her teacher showed her how much more that cunt could take. The first time Kissy had worked those fingers inside her weeks ago felt soft compared to this. Now the smaller girl had her wrist buried to the knuckles, knuckles that twisted slow and spread her open again and again. Each thrust made Winnie grunt louder, hips shaking. Sweat beaded between her breasts. Kissy never paused. She pulled out only to drive back in, pushing higher, curling, pressing the walls outward until the skin stretched thin and shiny around her hand. Winnie came the second time without touching her clit. She came again a minute later, voice cracking. Kissy grinned, kept pumping, and left Winnie raw, open, gasping for the next thrust.