When Rachel got to the bathroom, Quinn was not there. Rachel's hopes dropped slightly as she went and sat on the chair by the sink. It was possible that Quinn was caught up in class, and Rachel seriously hoped that was the truth.
"I'm so sorry, Rachel. My teacher kept me behind." Quinn said, running in. Rachel immediately felt wet at the sight of her mistress. It still amazed her at how quick her reaction to her mistress was.
"That's okay, mistress." Rachel said, kneeling on the floor in front of Quinn. Quinn quickly stripped off her skirt and spankies and shoved her throbbing cock down Rachel's throat. He threw her head back in pleasure as Rachel licked and sucked at her cock, her hands working Quinn's balls at the same time.
"Oh, god! Right there, Ohhhhh!" Quinn cried. Just as she felt herself about to explode, she pulled back a little, allowing most of her ropes of cum to end up in Rachel's mouth rather than going straight down her throat. Rachel greedily swallowed it all and the sight made Quinn cum again, almost immediately afterwards. When she had finally been milked dry, Quinn pulled her skirt and spankies back on. Rachel pouted a little, thinking that was it for this session.
"On your hands and knees, bitch." Quinn grabbed something from her bag and began to rub it up and down Rachel's slit, covering it in her juices. Gasping, Rachel tried to thrust her hips towards whatever it was. Quinn was not having any of that and held the small girl's hips in place with her free hand. She then showed Rachel what she had been coating in her juices. It was a Ping-Pong ball.
"Now, I'm going to put this inside you and when I take it out tonight, I want to find it exactly like this. Do not squash it." Quinn told her and shoved it into Rachel's dripping hole. Rachel knew she wouldn't be able to walk properly with it inside her but she knew she would be punished if she didn't do what she was asked. Getting up, she felt the ball move slightly and moaned. She fixed her skirt and Quinn pulled the vibrating panties off.
"There will be nothing to help you hold it in. It will be all you." Quinn grinned evilly and Rachel was glad she was wearing a long skirt. Quinn looked her over, wiped some left over cum off Rachel's face and gave her a push out the door. As she walked, Rachel could feel the ball moving inside her and hoped that she would be able to hold the ball in for her last two periods.