Help out Katie, after she helps you out

I look over at Katie, and pull out of her mother, my hard on still raging.

"Katie, the man has been nice to me and I trust him to help you become a woman.”

I stand up and move over to Katie, helping her remove what’s left of her clothes. The view of her young, pert tits seems to make me even hornier. "If you help me out with this", pointing to my cock, "then I will help you out with that need to explode of yours,"

Katie kneels down and kisses it. Then she licks the tip. Then she sucks the tip before taking it as far as she can in her mouth.

“You’re doing great, honey.” Her mother is now totally naked and is caressing herself in the corner of the dressing room keeping an eye on the proceedings.

As Katie gets more comfortable, her mother gives her tips on using her tongue and sucking my balls. As she’s fingering herself watching you getting blown by her own daughter, I can hear her sweet moans.

My balls can’t take much more and I need to get myself into this girl's pussy before I blow. Her hand is now also working the shaft as she sucks my cock into her mouth with wild abandon.

I gently move Katie's head off my cock and lay her down flat on her back, she seems nervous. I spread her legs a little and see her pussy drenched in her own juices. Slowly I push my cock into her and she winces, the pain obvious on her face.

"Relax Katie," her mother says, "It will hurt a little bit, but soon you'll feel really good."

I can feel her letting go and starting to enjoy herself once the pain subsides and the pleasure sets in. I increase my rhythm and she moans with each thrust. She's incredibly tight, much more so than her mother was.

It's not long before Katie is really getting into it, she wiggles her hips, grinding her clit against my pubic hair. I think that now is good time to try a little more, I draw partway out of her and then thrust back in. Katie digs her nails into my waist and lets out a moan. I take this as encouragement and do it again, slowly pulling out and then thrusting home, each time her nails grip hard causing a pleasurable painful sensation to shoot up my sides. Katie periodically bucks her own hips off the floor to meet the thrusts of my cock.

"Oh mum, uuunnnnggghhh, I think I'm cumming", her mother continues to rub herself while watching what is going on. She grips her nails even deeper into my sides to the point that she scratches me and draws blood. It only adds to the sensations that I am feeling, her legs lock around me and her pussy clamps down hard on my cock. I can't hold it any longer and my cock explodes in her snatch, depositing spurt after spurt of cum deep inside of her.

"Oooh, I want to taste that cum!" says her mother making her way over diving down onto her daughter's young cunt. She extends her tongue onto the girl's labia slurping up my cum that is oozing out of Katie's cunt.

All I can do is slump back against a chair, spent.