Robert lay on his back as Jess continued to work his dick between her now massive breasts. She's always had an impressive rack but the effects of the gun had made them ridiculously large. But as big as they were they actually fit her new body well. Amanda felt a surge of jealousy as she looked at Jessica’s immensely muscled body. She wasn't as tall as Robert but she was almost as thick. Her shoulders and back flared dramatically from her waist, which was still tight and sexy. Below the thin sexy stomach with the rock hard abs her hips spread out to form an amazingly muscled ass and thick sensual legs.

Amanda tried to ignore them as she crept closer and closer to the gun. Her brother grunted loudly and Amanda stifled a scream of disgust as she was splattered with some of his cum. He was spraying it like a fire hose. "Yuck," she muttered to herself.

"My turn honey,” Amanda glanced at the two lovers, Robert was still on his back but now Jess was straddling his face and bucking like she was riding a wild horse. "Oh BABY!" Jess yelled. The sight of her back muscles clenching and unclenching rapidly was awe-inspiring and Amanda felt another surge of jealousy.

Amanda finally reached the gun and she studied it thoughtfully.