Helen has been sent to Headmistress’s office for being naughty again and she is wearing her slutty little uniform with over the knee socks & high heels. As she waits for Headmistress to arrive she starts to flex her biceps, she has been going to the gym a lot lately and she wants to see just how defined her muscles have got. First she flexes them underneath her top, and you can see as they move under the shiny material as she grabs them. However she soon takes her top off leaving her in her skirt & tie and she plays around some more, tensing her biceps a lot, and shows the definition she is starting to form. As she plays around she flexes both together and then alternates between them but either way she gives a nice little bicep show and she is clearly very proud of her increased muscle definition. The gym is clearly paying off!