His hand moves

Yasmin tried not to gasp, she didn't want to draw attention to herself, but suddenly Joe's hand was moving, creeping slowly towards her pussy.

Her eyes were locked on Miss Sullivan, she didn't know what to do or what to think, but suddenly Joe's fingers reached their target, one of them slowly gliding across her pussy lips.

Yasmin bit her lip, willing herself to stay quiet, she couldn't believe this was happening, a boy was touching her in her most intimate of places in the middle of class!

That's when he slowly slid one of his fingers inside, her moist lips parting to let him enter