By going to the beach

Powerless and still somewhat horny, Nadia put the phone down and sat back on the edge of their bed.

She figured that, to be fair, she had planned to wear the collar for as much of the vacation as possible, and she had planned to relax on the beach by herself today, so this didn’t affect her plan too much. Besides, swimming in the cool water seemed like a tempting relief for her sensitive skin.

She got to the beach at midday and slipped out of her clothes, leaving her in the red bikini she wore beneath. By this point, her arousal had faded, excruciatingly slowly, to a manageable level, so she was able to concentrate on her book and enjoy the warm rays from the sun as they enveloped her. She relished the bliss of a clear mind, the collar blocking all the noise from her magical perception in this serene moment.

She had an hour of uninterrupted reading and tanning, and was about to try to find a drink for herself when she happened to tune into a conversation.

"I can feel it - it's coming from over here. Whoever made it must be talented." A male voice commented in the distance.

Luckily for Nadia, she had the intuition to realise they were talking about the magic she was affected by. With seconds to spare, she dropped the book and rolled over to lay face-down on her towel, resting her forehead on her hands and pretending to be asleep.

Sure enough, the sandy footsteps came closer and stopped near her. She guessed four people were standing around her; her cheeks burned as she felt their eyes on her.

"Wow: they've done a number on her," she heard a male voice say. "Arousal triggered -- can't tell by what, erotic contact blocked, and climax blocked." He chuckled, "with no release trigger!"

"Even by my standards, that's cruel." A female voice said, intrigued.

Nadia did her best to stay still, hoping they'd move on soon.

"This kind of curse on a non-magic is pretty illegal, of course," the male said.

Nadia, an enforcer herself, knew this just as well as she knew that she couldn't turn around and tell them she had magic: she'd be admitting that the collar exists, and make herself fair game to them.

He continued, "I would love to meet the person who made this though. Can you check her things while I look closer?"

She felt someone kneel down next to her, presumably to inspect the curse on her. Another person was jiggling her bag. She fought the urge to turn around and defend herself, but as an enforcer who has to deal with things like this all of the time, she knew very well the kinds of things that happen to non-magics in a confrontation. She continued to play dead.

"Nothing in here. ID, credit card and a bit of cash." The female, in the direction of her bag, said, disappointed.