Jimmy immediately knew what Anna meant. He has been waiting for his reward all day.
Despite the heavy orgasms Anna had throughout the day, she was still a little bit aroused. Jimmy even more so, since he didn't ejaculate when Anna felt him up while they were on Gutaxun's back.
Of course, even though Anna offered to give him his reward, he could tell that she was a bit irritated. She was shy when she spoke, but he could tell how much this setting was bothering her, on the count that she continued losing control over their relationship, despite her best efforts. She wanted to dominate him, she craved total domination, simply because he had sex with Nechi before Anna herself even got the chance to pursue Jimmy properly.
This was why she felt him up on that dinosaur ride. She craved domination, she wanted to win the battle that she had created in her mind, and was the sole participant on. She hasn't won yet, but if she did, she'd finally mellow out, and enjoy herself.
