I love my school gym kit of tight navy panties, plimsolls and knee socks but when I fail to do my required exercises I must punish myself with my very own plimsoll! The shame...

First bent over across my panties, then on my back with my legs in the air, which includes me applying both plimsolls to my bottom cheeks AT THE SAME TIME!. Finally, a punishment must be on the bare, right? Well, today is not different as I lower my gym knickers and apply the plimsoll on my VERY red bottom!