After reporting her findings on the completed SecurU sack to Celestia, Twilight was shocked when the curious princess asked to try out the sack herself. Highly embarrassed, Twilight nevertheless complied, and brought a sack to Celestia's bedchamber, where Celestia allowed Twilight to secure her inside it. For the next hour, Celestia tried out the sack, wiggling, squirming, and attempting to move as more and more weight was added to it until she was convinced that escape was impossible. The ruler of Equestria praised Twilight for her work at creating such a secure and comfortable way to confine and restrain Equestria's prisoners.

Though it was never officially confirmed, rumors have persisted that Celestia acquired a sack for her own personal use on her closest friends and special guests. When asked about such rumors, Princess Twilight Sparkle reportedly blushed and quickly changed the subject.

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Wondering what a SecurU sack is? Click here.