Isabella

Nathan's eyes widen at the sight of his infected sister as a wicked smile crosses her plumpen lips. As she moves forward her cock bobbles obscenely below the tight rubber skirt. Isabella's lips part as she speaks in a domineering tone; "Natalie, I didn't realise you were so nervous. I was hoping you would have transitioned at the store." Nathan took a step forward as he shouted back at her; "For fucks sake, I'm not a pathetic Sissiboi and I am not yours stop treating me like your property."

Isabella barely stifled a giggle as she strode closer, as her heeled foot clicked against the wooden stair. With each step he took, his sister began to close the gap behind him. Until he could feel the tip of her cock resting against his denim-clad legs. A victorious laugh slid from her buxom lips as she parted them to speak; "Is Nathan going to be attempting another fruitless escape or is Natalie ready to come out and play."

Nathan gulped nervously as his eyes darted toward the open window of his bedroom. It took a few tense moments before Nathan...