A bit of trouble at security

Mackenzie leaned forward over the conveyor belt, sliding her bag and bin onto the moving material. As she stepped away from the belt, she didn't notice that the button on the front of her jeans had gotten hooked on the edge of the metal frame. The old and worn fabric couldn't handle the strain as she pulled away and the metal button popped free of the jeans entirely! Mackenzie had picked an older pair of jeans to wear, opting for comfort over style while sitting on a plane all day. This pair had seen plenty of use over the years, and didn't cling to her slender legs like most of her other jeans.

Mackenzie strode forward and into the screening machine, socks softly padding on the cold floor. She was oblivious to the fact that her jeans were dipping even lower on her hips as her zipper began to slightly part.

"Turn to the right and raise your arms." the guard said in a bored voice. Though, his eyebrows perked up slightly when he noticed Mackenzie's black panties peeking into view.

Mackenzie did so, seeing a human looking diagram in the pose she mimicked. She stayed still as the machine did its job, trying not to think about what kind of a view the TSA agent on duty might be getting. It only took about five seconds for Mackenzie's jeans to reach the point of no return. After escaping her shapely hips, the pants dropped down her legs in a moment, piling around her ankles.

"Ah!" Mackenzie cried as she realized her panties were on display before the large crowd. She bent over and quickly picked her jeans back up. She pulled them as high on her hips as she could, finally noticing the missing button.

"Ma'am," the agent said, "You need to stay still for the machine to work. Resume the pose, please."

Mackenzie gulped but did so. A few seconds later, the jeans fell back down. This time, there was a murmur of laughter from the waiting crowd.

Mackenzie couldn't help it. She crouched down and grabbed the pants again, pulling them up her slender legs.

"Ma'am!" the agent said forcefully, "Remain still. I'm not going to tell you again!"

Feeling like she had ****, Mackenzie did so. Sure enough, the pants rocketed to floor a few seconds after she'd raised her arms. By now there was more laughter, and even one person holding their phone up at her. Mackenzie stood there for what felt like an hour, but was likely only 30 seconds, allowing everyone nearby to get a good look at her curvy underwear-clad ass.

Finally, the agent said, "Okay, step out." He had a noticeable smile on his face as he directed Mackenzie over to the side. "Wait here a moment." Mackenzie held her pants in place, trying not to look at any of the dozens of people who had just seen her panties. He conferred with the agent running the machine and after a moment returned. "There's something on your torso you we couldn't identify." he said. "So..."