A Hot Summer Day at School [FF] [caution] [teen] [lesbian]

Cautionary Note: All protagonists in this story are above 18yrs, ‘coz they failed in their math class one too many times.
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It was a hot summer day and it made me all sweaty, even down there too. I couldn’t help but slide a finger or two during maths class. I could feel my nipples getting harder under that tight white shirt, my face contorting into weird angles. I could feel my bra tighten, my breasts begging to pop out. I have to stop. I don’t wanna wet my panties in school again and definitely not during maths class. But I couldn’t stop. Instead, I became even hornier after pushing my fingers again and again through the sidebands of my panty. I couldn’t control it anymore. My armpits were sweating hard, my breath hastening and I was getting hot. In a moment of desperation, I started to slide off my panty down. The fear of getting caught what I was doing under the desk only turned me onn further. Now stealthily pulling down the panty all the way to my black school shoes and gently taking my feet out one by one, I crumpled the panty and in a hurry and hid it in the lower compartment of my bag.