Absolutely, she can learn a thing or two

"Sit there." You point to an empty chair with a unobstructed view of the bed. "Watch what a man does to a fine piece of ass like this." Grace squeals in surprise when you smack her firm buttocks playfully. As far as you were concerned, you've fulfilled your end of the bargain, if the nitwit wants to stay and watch so much the better.

"Sally, Please?" Grace is clearly put off by knowing that her sister is right there, but you pull her into your arms and kiss her passionately. With this reminder of what you can do for her the horny teen puts aside her worries about her sister and concentrates on you.

"I want to see all of you," Grace purrs softly, sitting up and starting to unbutton your shirt. She kisses your chest with each button she opens, teasing you with her soft mouth and hot tongue until she's stripped the shirt off you. With only one quick glance at her sister Grace runs her slender hands over your torso, feeling the hard flatness of the muscles you developed labouring, looking at you with smoky eyes.

"You're so hot," she murmurs. "Not an old man at all. I was a stupid girl," she adds with grimace, glancing at the graffiti on the wall as she tugs at your pants. You help her, standing to let them drop and stepping out of them before climbing back onto the bed naked. The gasp from Sally goes a long way to reviving the life in your twitching member.

She cups your flaccid cock in her hands, squeezing it gently as she wriggles against you. Her skin feels like satin, and she smells of young girl and hot sex. When she gently pushes you prone on the bed, writhing her nubile body against yours, you feel your aching cock start to respond, even though you didn't think it possible.

"Mmmmmmm, you're getting interested," she coos. "You're not bored with me after all. I'm so glad."

"I'll show you how bored I am," you growl softly, putting one hand behind her neck and pulling her into another wet kiss that makes you feel like an electric current is coursing through you. She moans into your mouth as you kiss, squirming on top of you, the warmth of her flesh and the scent of her nearly driving your mad.

"Oh God I want you," she moans, breaking the kiss with a gasp. "My boyf....that boy Lance I fucked, he was just a boy, but you....you're a man, such a sweet man."

"And you're a woman, or at least you will be by the time I'm done with you." You growl into her tangled red hair as your hands grips her toned buttocks and pull her slender body tightly against you.

"Yes, I want to be your woman." Grace is as eager as any lover you've ever had, and the thought of this tight young teenager giving herself to you has you almost fully hard again. "I want you to teach me and train me....Oh God I'm so wet for you!"

"Grace!" The outburst from Sally breaks the mood for just a second, but when you look over to silence her and see her staring at you with obvious signs of arousal. Both her hands are between her thighs that open and close rhythmically; you don't have the heart to scold the innocent young woman.

In fact as you watch her slowly bloom right before your eyes you can't help but wonder what it would be like to make her a woman. Your rod hardens noticeably in Grace's hands and she does not miss the attention you're giving to her sister.

"Hey!" Grace slaps you playfully and turns your head back to look her in the eye. "Leave her out of this, if you want a tight young pussy, you've got one right here."