Laura said, fantasizing "But I want to have an ass like that and shake it too", not realising the remote would pick it up.
Not that it mattered, though, she was too busy throwing it back for her fellow classmates. Since she had the biggest butt in the school alongside Ms. Mounds, she was offered to assist her in masturbation classes, which she of course accepted: she got to be sexy, be next to Mounds and was payed for it? That was the best deal ever! She used her upper arms to do blowjob gestures while user her lower ones to jerk off, bouncing her ass to the beat with Ms. Mounds.
Ms. Mounds complained, "I know we're in a masturbation class, Laura, but you do not need to be so vulgar!". "Don't complain I have balls unlike you, Miss! Come on, show your bare ass to the class!", Laura replied. The remote beeped, but Laura was too horny to hear it, she loved the feeling of her plum-sized nuts bouncing against her ass when she squatted. She was even allowed to show off to her class, given Mounds and herself needed to remove their pants before dancing. "This has nothing to do with your t-testicles, young lady!", Ms. Mounds said, blushing. They decided to change, now shaking their hips from side to side, clapping their fat asses against one another. While Laura sluttily moaned with her tongue out, Ms. Mounds tried to restrain herself, even if a moan or two escaped her lips at times.