Through the keyhole, Shay could observe what was going on. "W-who are you?" Yewbough gasped out, as the adventurous sister freed his manhood from its restraint.<br/><br/>"You've got to keep him quiet or half the mansion will know what you're doing," the uptight sister commented, crossing her arms as she leaned against the wall with a slight look of disapproval on her face.<br/><br/>"I know," was the slightly exasperated reply. She rummaged through a nearby drawer of sex toys until she found what she was looking for: a ball gag. After putting it on the unlucky bard, his cries of protest were reduced to muffled moans. Without anything else to worry about, she kneeled in front of him and started teasing him with licks up his shaft, getting him rock hard within seconds, until he was bucking his hips trying to thrust into her mouth, cruelly stopped from doing so by the restraints holding him down, and his cries had turned from protesting to begging.<br/><br/>The other sister, leaning against the wall, pretended not to be affected by the scene in front of her, but she was soon blushing red and breathing heavily as well. Her hand started slipping down into her tight-fitting pants... It was the perfect opportunity while both twins were distracted and Shay was just about to barge in like a knight saving her prince, when the observing one caught herself, and pushed off the wall, standing upright.<br/><br/>"I'm going to make a round of the grounds," she announced, "don't get too carried away now." She turned towards the door, making ready to leave, having not noticed the eavesdropper peeping through the keyhole yet...