Start their punishment

"You're going to be very sorry," you growl, feeling Sally's young body tremble in your grip. "And you're going to clean it up."

"Yes sir," she whimpers. "We'll do it right now sir."

You ease your grip on her neck and she relaxes, turning to face you, your hand still cupping her throat. You can feel her pulse beat beneath your hand, and her pretty face is marked with tears and shiny with perspiration. Her teeth bite her lower lip in anxiety, her eyes search your face for forgiveness.

You take a short step back from her, still holding her gently by the throat, letting your scornful gaze look over her. You can see that she is bra less beneath her tank top, and her nipples are making their presence felt, raising stiff little mounds atop her pert breasts. Your cock twitches again at the sight of the delectable young redhead, despite your efforts to control it.

"Very well. Get to work," you snarl, letting her go and nodding towards the defaced wall. She nods shamefacedly, going to stand beside her sister, the two of them looking up at their handiwork.

"Do you have a rag or something sir?" Grace asks plaintively.

"Use your shirts," you answer with a sneer, taking pleasure in seeing their faces dissolve in shock and horror, their eyes flickering from each other to you and back again.