Do as she commands

You twist her around, as she eagerly bends forward, showing you her long grey skirt. You grab it by the hem, lifting it up into the air to reveal a pair of large white granny panties draped over her tremendously fat ass. You grab those by either side, pulling them down to reveal, underneath rolls of flab, a pussy with a fixing of messy red pubes at the top.

It's not going to be your proudest fuck, but definitely better than studying.

"Go on, puppy. Mount me. Let me feel your big hard cock!"

You press your cock against her head forward, allowing it to gently pop inside of her as she lets out a gentle moan.

"Oh merciful heaven! That's right, woof for me like a dog while you thrust inside of me!"

You let out several large barks as you slowly slide forward, your cock consumed by her fat pussy lips as you feel just how wet she is. This must really be a kink for her if she's getting aroused by just this. The smell of her sex fills your nostrils, a strong and pungent order as you grow harder, filled with a mixture of arousal and disgust. You pull back, before slamming forward with some ****. She groans in pleasure, your cock plunging deep inside of her, before you pull back again. You let out another bark as you drive your cock further inside of her, causing her to gasp with pleasure.

"That's a good puppy! Fuck me against the staffroom table!"

You push your Principal against the old wooden table as it creaks in response, before slamming down hard again as she gasps. You use your hands to spread her flabby arse cheeks, feeling your cock rub against her inner walls. Her pussy squeezes down on your cock as she begins to groan loudly, a horrid noise but one that stirs you even harder into thrusting, fucking her deep and fast.

"That's right! Fuck me like that! Just like that, puppy! Oh, make me cum, you dirty animal!"

Her pussy squeezes and squelches, her entire body rocking as she orgasms, massaging and squeezing your cock.

"Oh, good boy! That's such a good boy! Fuck me more, I want to cum again!"