Serena kept laughing and giggling as her teacher used her long, sharp fingernails to tickle her soft nyloned soles. Her right foot wasn't able to curl anymore since Miss Haruna was holding her toes back. She knew she'd go crazy if she was kept like that, but she couldn't move or beg due to the gag put in her mouth. Tears came to her eyes as she tried to beg her to stop, but the only sound that came out was of "Hmm, Hmm."
-Hm....seems like I should give you a break, Serena. Should I give you a break?
-Hmm! Hmm!!
-Oh wait... you had plenty of sleep time in my class! No breaks for you!
What happens next?