Taken to do some more training

Belle obediently followed Mildred without even speaking, even if she was blindfolded. She was led down some corridors and through a few doors before they came to a stop. She had no idea what was going on but felt terrified.

"Get on all fours", Mildred's commanding voice come from somewhere in front of her. Belle didn't even hesitate to follow her new order, quickly nodding and doing as told.

"Good, it's pretty clear you're learning. This training is actually not going too badly", she heard Mildred say, and she was not sure whether to feel worried or relived at the apparent compliment. She then felt Mildred put something on her back.

"Now I want you to balance these books on your back as you make your way across the room on all fours. Every time you drop them you will get ten spanks and possibly an extra punishment if you fail too many times. Now, get to work", Mildred told her and again, Belle just did as she was told, slowly starting to crawl across the room while balancing the books. Whatever was in her ass kept brushing against her legs and made it much more difficult to stay focused.

With her lack of experience doing anything similar, it didn't take long for her to fail and drop the books to one side. She winced as she hear Mildred walk over to her, a hearing the clink of her boots on the floor as she came nearer and nearer.

It wasn't long before she felt the pain and stinging of her ass being hit by a paddle, followed by 9 consecutive hits that made her cry out in pain. After that, she heard Mildred pick up and the books and then felt her leash getting tugged hard and she scrambled to follow.

Before long she was once again in her starting location with the books on her back, and ready to go again. This time she went considerably slower, doing her best to not drop the books before she felt a boot hit her ass and she yelped.

"You aren't going to get anywhere with that turtle pace", Belle heard Mildred's voice behind her, and she was quickly to respond with a nod, getting the message and moving faster, though quickly dropping the books.

In the end, it took her 16 tries to manage to get the books across the room, with her tenth failure leading to the extra punishment of having something large shoved into her bare pussy, dully vibrating and making her almost orgasm before being cruelly turned off at the last second, leaving her without release.

"I think that was fairly successful. Now get up, we have more things to do before I can seal the deal."