Write some new rules

As much as Bosscake(and good half of her classmates) enjoys looking at her teacher's large ass, barely covered by skirt, she decided to make some new rules.

Old rule: 50% of men and 50% of women are futanari with big boobs and butts and with big cock no bigger than 20 inches long. Humans are stretchy enough, so such big insertions are not painful and do not cause any damage.

As Bosscake wrote the rule she noticed some changes, some boys become girls and she also noticed a small bulge in Ms. Lemi's panties. "Heh, that's fun, though that were 'old rules' and now I wonder how works 'new' ones..." - thought Bosscake as she tried to come up with something else. -"Oh, right. I know what I want to write!"

New rule: 2+2=5

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"Ms. Lemi! You have an error!" - at first nothing happened, but not more than a minute later a nerdy boy pointed at the equation on the board.

"A-are you sure? Oh! I see..." - Bosscake smirked looking at the teacher's confused face, just as 'The Rulebook' said 2+2=5 is right, but people remembered that it wasn't like this. As teacher began correcting her 'mistake' Bosscake eraised that new rule and wrote another instead.

New rule: Public nudity, masturbation and sex considered normal and legal, as well as polygamy and ****.

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Just like before at first nothing happened, but few minutes later Bosscake heard distant moans from the street, she wasn't close to the window to see what happening outside. But what really catches her attention is girl seating next to her. After Kessler wrote the new rule the girl began taking off her blouse, exposing her bra-less boobs to the world.

"What? It's really hot today." - the girl noticed Bosscake gaze.

"Ah, no nothing..."