She lets you finish

"Hang on a minute". Gemma says, recognition flashes in her eyes. "You're Stacy's little brother aren't you?"

Feeling my cheeks turn bright red I nod, and I avert my eyes. Unable to meet her gaze.

"He's not so little Gemma!" Kinzie chimes in with a giggle, and grinds her arse on my cock sexily, drawing a groan from the back of my throat.

Gemma smirks."Before I punish you both severely, I want you to finish what you were doing," Gemma tells you. Instead of doing as I'm told, I stand there with a confused look. She continues for my benefit, "I'm not heartless. If you are going to be punished, you may as well finish."

After looking at Gemma for several seconds trying to gauge if she was being serious I resume fucking Kinzie. Kinzie moans in delight and brings a hand down to her throbbing dick.

After a minute or so Gemma crawls into the cramped cubicle, gets infront of Kinzie and puts her cock straight in her mouth. She does this like it's her duty, without any embarassment! I can tell that Gemma is either supremely gifted at cock sucking or she has had a lot of experience at it. My now frantic pounding of Kinzie's butt has her cock fucking into Gemma's eager mouth. Gemma's sexy face, which I've fantasized about on my own cock many times is instead on a shemale's! That thought puts me over the edge. As the cum surges up my cock, I think of something funny.

"So that is why they call you 'Head Girl?' I ask (well I thought it was funny) aloud right before I unleash a loud moan and unleash a torrent of hot spunk inside of Kinzie's butt. Kinziei half-laughs as she cums into the waiting mouth of Gemma. Her throat muscles indicate she is swallowing it all.

After Kinzie and my orgasms subside, I watch Gemma get up onto her face. Her face is totally clean. She opens her mouth to tell Kinzie and myself our punishment. I wince in anticipation, figuring I'm going to pay for that wisecrack.

"Funny joke, you. But no, actually, this is why they call me 'Head Girl'!" Gemma whips out a cock from under her skirt.

My mouth hangs open, absolutely stunned. Her cock is huge. It must be twelve inches long, and very thick. Pre-cum oozes out from her bulbous cock head. I avert my eyes from Gemma's shaft and look into her eyes. She smirks and opens her mouth again.