In this fantasy by Skyryder23, bondage legend Darla Crane portrays a professor at a very exclusive academy. The story opens at the beginning of the semester, and the POV teaching assistant greets the gorgeous professor for the first time. She explains the course to him and outlines his responsibilities, which include helping her prepare for demonstrations in her class on the fine art of bondage. She wastes no time with this, and gives her new assistant his first challenge: They're going to roleplay a scenario where he's the burglar who invades her home and ties her up. The stunning redhead is tied hand and foot, and she gives a generally positive critique to his first effort. But she points out the weak points of his binding attempts, and encourages him to give it another try. Professor Darla is next seen hogtied on top of her desk, and she compliments his improved effort. But she notes that she could still call out for help, and she suggests he come up with something embarrassing that might make his prisoner think twice about escaping if she managed to free herself enough to get away. His answer to these issues is to tapegag the buxom professor, and to open up her blouse and to hike up her skirt. She twists against her restraints, moans and struggles on top of the desk, and it's now obvious the roped-up professor has met her match. Then we get a look at Darla's class: seated in a chair, she's still bound and duct tape gagged, her voluptuous breasts are exposed and she delivers the final part of her lecture in gag-talk.
A few weeks later, Professor Darla summons her teaching assistant to a basement dungeon somewhere on campus. Unexpectedly, the statuesque beauty is dressed up in a super-lady costume, with boots, gloves and mask. She explains that this particular role-playing situation situation is very common and quite popular, and for her next demonstration she'll be portraying the conquered crimebuster and he'll be the super-villain. The delectable redhead challenges the POV bad guy to do his worst. When we next see Darla her ankles are bound and her hands are tied behind the post. Ever the benevolent professor, she compliments his knot-tying abilities, and then helpfully points out some ways his evil efforts could be improved. She suggests he try it again, and to be a little more rough this time. Her assistant then goes all out, and the luscious professor is now handcuffed (in addition to the rope) and thoroughly secured to the post with chains and locks. Darla is also ballgagged and her spandex costume is pulled aside to bare her voluminous breasts. The sexy professor slips into her role and struggles mightily, or at least as much as the metal restraints allow... which isn't much. Her huge breasts heave as she struggles to free herself, but she must ultimately admit defeat.
At the end of the semester, Professor Darla prepares for the final class. She's assembled a bedroom setting for the ultimate lesson: how to use bondage for "lovers." She pulls back the sheet on the bed to reveal the equipment for the demonstration to her POV assistant: an ample supply of rope, a bandana and a vibrator. The seductive professor then strips out of her clothes and down to her lacy lingerie (shown on-screen) and tells her assistant to give it his best shot. Our busty redhead is frogtied on the bed, her arms outstretched and bound to the headboard. She's cleavegagged and the vibrator is firmly anchored between her thighs. The Hitachi is switched on. Professor Darla revels in the moment and she pulls against her restraints in ecstasy and moans with delight as the excitement builds. Then Darla succumbs to a powerful, jolting bound orgasm. It seems she's taught her assistant quite well!