Getting locked in some kind of fetish garment, or more general, just not being able to take something off. That could be done with actual locks, or glueing something closed, or just actually getting sealed in something, that when dried / finished processed, has no opening. The tag Chastity is always combined with this of course.
A Week Away by Shmabahamoha
A Week Away by Shmabahamoha (Archive Link) This is absolutely one of my most favourite stories by Shmabahamoha, which was inspired by Ultimate Fetish Dressing by xqlinnxx and features many parts of the outfit described in there. ...