"I know I am." With that, she slid her fingertips down the front of her panties. Her eyes rolled back in her head as she tenderly stimulated her clit through her panties. You were dying in lust and jealousy! You wanted to be rubbing her clit instead of her! But she knew it, and that's exactly why you had to stay where you were and watch.
After a few excruciating minutes of teasing herself, Nikki jerked her hand out of her panties and reached out to undo your chastity cage. She had grown very adept at working the device, so in moments your rigid cock sprang free. She grinned at it, proud of the effect she had, but she didn't touch it at all.