Ziva has falling woefully behind in her grades, but fortunately for her, she has a professor who has a suggestion on how to bring her grades back up: If she will allow herself to be bound and gagged for his pleasure, she will pass the course. Hesitantly, she agrees. The ropes are far tighter than she expected, particularly thew rope snaking between her legs and bisecting her sex, driving her panties deeply up into herself and cleaving the crack of her ass. Nervously, she opens her mouth to allow the professor to tie a fat scarf between her teeth, gagging her quite effectively. Now regretting her decision, she begins to struggle in earnest, calling out in panic as the ropes seem to tighten by the second. Oddly, the longer she struggles, the more she begins to enjoy her bondage! In fact, her attitude changes so much, she agrees to be hogtied and sighs happily as her gag is made all the more effective when the professor applies an over the nose cloth gag! Now left alone, pulling at her bonds, she begins to wonder if any of her other professors would be willing to engage in any extra credit sessions!

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