Absolutely

You look at the tender young redhead, taking in her slender girlish body and her small conical breasts tipped with stiff brown nipples. She looks absolutely delicious, and your cock stirs at the sight of her, and the offer of her sweet soft mouth.

She's irresistible, and you can see from the slight widening of her eyes her teeth biting her lower lip that she knows the effect she's having on you.

"Very well," you agree with hoarse growl. "Get on your knees."

She nods acceptance, then turns her head to look at her sister. "Get out of here Sally. Put your shirt on and get out of here," she orders quietly. Her sister looks at her and you in shocked horror, mingled with disgust and bends to pick up her shirt.

"Leave it there," you growl at Sally before turning your attention back to Grace. "She stays. She can watch you save her from punishment." You savour the look of shock and dismay on Grace's face at your words.

"No! Let her go! You promised!" she protests.

"I promised to keep her out of punishment. That's all. Now get on your knees before I change my mind," you tell her, then look at Sally who stands timidly, covering her small sweet breasts with one arm, looking at you with wide eyed dismay. "Sit on the bed and watch what your sister is willing to do for you."