Robert took a step towards Jess. "Hey come on Jess, give it back!" Jess only laughed as she adjusted the dials "Oh just wait a minute Robby boy! I want a taste of the action!". Jess had never really wanted to have big muscles but seeing Robert's transformation had awakened a hunger within her. She HAD always craved power and control and this gun could satisfy her lust. Taking aim at herself she smiled at Robert and Amanda who stood there unsure what to do. "Now watch closely" she teased, and pulled the trigger. A beam of green light hit her right in the chest. Almost immediately Jess could feel the change beginning. Lifting up her shirt she watched as her stomach compacted and morphed, first from slightly defined abs, to a solid six pack, then a rock hard eight pack. Suddenly her clothes began to feel tight. Looking at her arms and legs in amazement she watched them swell with muscle. her biceps ballooned out and her thighs became giant bundles of power. Flexing her muscles her clothes practically exploded off her body. Her bra snapped off revealing two huge perky tits supported by massive pecs. Her back flared out, becoming a massive wall of seething muscle over 3ft across. She began to caress and fondle her growing body, nearing orgasm as untold amounts of power flooded her body, building muscle upon muscle and increasing her height as well. Soon she stood easily a head taller than the 6'3 Robert and packed easily a hundred more pounds of muscle on her frame. She finally stopped growing as she absorbed the last of the beam's energy. She stood over 7ft tall with muscles larger than any being on earth. Going into a double bicep pose Jess roared in sexual ecstasy, juices flowing from her snatch. "YEEESSSS!!!" she squealed in triumph. Running her hands over her body she continued to moan as she explored her incredible physique. "Look at me Robert! Look what I have BECOME!" Robert could help but get incredibly aroused by the naked amazon goddess before him. She saw his massive erection and laughed. "Ha! I see you agree, I am a GODDESS! I feel so strong, so POWERFUL!" she emphasized her point by flexing her bicep again, which swelled into a peak larger than Robert's head. She kissed her bicep lovingly before turning her attention back to the other two people still standing awestruck before her. What would she do next? She though to herself, licking her lips with confidence.