x by Beran

https://desuarchive.org/mlp/thread/29671249/#q29742654

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>The cape he normally wore, mercifully hid the device from prying eyes, but as days passed by it was him who found it impossible to ignore it's presence.
>It moved between his legs when he walked, his trapped balls brushing against the rigid material.
>Each step adding to a frustration he could no longer relieve.
>The princess summoned him for a private meeting.
>Deeply troubled, she confided in him her fears about the emerging temperament of her now teenage daughter.
>Understanding the gravity of her worry he concurred, something had to be done.
>Then she revealed the device.
>"Safety begins at home", she said and asked if he'd let her put it in place.
>Flabbergasted by her request, but not wanting to appear disingenuous, he reluctantly agreed. 
>Her hooves were firm yet delicate.
>She pushed him on his back, and one by one adeptly squeezed his testicles through the barely fitting ring, handling his vulnerable treasures as if they carried her own foals.
>Tenderly, she wrapped his cock in her aura and the magic seeped into his skin like a balm, pressing gently from all sides, pushing him inside the device, and leaving his pride to tingle, even when her touch was replaced by the cold, rigid tube.
>She thanked him for alleviating her fears and praised him for his loyalty.
>Still, he could not feel more humiliated, than when he saw her smirk as the lock clicked in place.
>His control of his cock was gone, but his fantasies never left.
>They called out, and teased him every night, inviting him to play, then denying his hooves, and leaving his balls swollen, aching with pent up lust.
>Every impure thought, every glance at a mare making him impotent as his masculinity was crushed against the unyielding walls of his cage.
>When he finally met the princess again and told her of it's cruelty before asking for the key, she laughed and offered to borrow him one of her dildos instead.
>He was too desperate to refuse.