Aaron led Lauren to the bed, and laid her on her back. He pulled off her pants and underwear, exposing her stiffening rod. Aaron bent down and began to manipulate her cock, teasing it with his tongue and gently stroking her shaft. Lauren's dick did not interest Aaron anymore. But he did need her distracted and compliant for what he really wanted. Her glorious muscle. It was a small price to pay for such power.
When he was satisfied with her erection, Aaron jumped on the bed and impaled himself on her throbbing cock. It was a tight fit, but Aaron was able to work it all in. Lauren grunted and moaned, as her shaft worked its way through his cunt. Then Aaron started to buck, working her shaft up and down his wet cunt. Lauren rolled her eyes in ecstasy, and Aaron knew now was the time to act.
He focused on her muscles, wishing that they were all his. Slowly, his body began to inflate, as even more muscle piled up on top of his growing muscles. Lauren didn't notice anything until it was too late. She was lost in bliss. But Aaron's body began to feel heavy, and his gyrations were painful. She opened her eyes and saw a monster on top of her. Aaron looked humungous, the size of a male body builder. And yet impossibly, it looked like he was still growing. Lauren felt weak, and quickly deduced that he was sapping her strength. She tried to push him off but it was too late. He was too strong, and she was too weak. She leaned back, but her dick was stuck tight in his pussy. Aaron smiled, recognizing that she was trapped. He clenched his vaginal muscles tightly. That was all the stimulation she needed. Lauren came in a massive gush. Aaron jumped off of Lauren, her dick painfully sliding out as he left.
Aaron jumped up off the bed to examine his new body in the mirror. He flexed and posed, enjoying his new strength and beauty. But it still wasn't enough. He could be better, bigger. He needed more.
"Aaron, give me that ring. There is something wrong with you. We need to switch back, right now, " said Lauren.
Aaron was horrified. He had just gotten this wonderful body, and now she wanted to take it away?
"No, " said Aaron. "I feel great. I don't need to change back. You just want to steal my fabulous body."
He took off the ring and held it in his hand. He had to keep it close, make sure she couldn't steal it and use it again. With shock, Lauren watched as Aaron swallowed the ring.
He gagged a little, and Lauren jumped up off the bed so she could administer the Heimlich. But his waist was thick, and his abs so tough, that Lauren couldn't do it effectively. It didn't matter. Aaron stopped coughing, and began to smile like a loon.
"It's mine now. Mine forever. Just like it was supposed to be, " said Aaron.
He grabbed Lauren's clothes, but they barely fit his massive body. He didn't care. He needed more muscle, and he knew just where to find it. He headed back to the gym.