discord hypnotizing prince blueblood to be his sex slave. discord uses his magic for a little fun time and gives the prince supple breasts. the more cum blueblood swallows the bigger his cock and breasts gets. includes a little bit of lactation from the nipples.

Discord smirked. “You’re enjoying this,” he teasted, “aren’t you, my little slave?”

“N-no,” Blueblood protested. In vain, of course. Some part of the little prince’s mind might have been resisting Discord’s little spell, but the rest of his body seemed more than happy to obey. Discord gave one of Blueblood’s breats a little squeeze; it was a D cup, easily, a thin stream of milk slowly trickling down to rest on Blueblood’s throbbing cock.

“Oh, nonsense,” Discord said. He prodded Blueblood’s lips with his own cock - two feet long if it was an inch, and wide enough that no pony’s mouth should have been able to fit it comfortably. Fortunately, physics had never been a problem for the Lord of Chaos. “If you weren’t enjoying yourself, then why would you do something so lovely as - oh, swallow each and every drop of my cum?”

He prodded again, and felt Blueblood’s final defenses crumble. Blueblood’s lips parted, and Discord slowly slid his cock inside. The prince’s warm mouth felt wonderful, smooth and soft and moist, but that wasn’t even the best part. Discord gave a few thrusts and grunts for show, his weighty balls smacking up against Blueblood’s chin, but had to only snap his fingers before the real fun began.

“I’m cumming,” he sang out - and did.

An ocean of cum blasted from Discord’s tip and directly into Blueblood’s throat. True to Discord’s words, Blueblood didn’t let a single drop leak or fall, instead gulping it all down greedily. He was like a little piggy, Discord reflected wryly, hungry for as much stallion - or draconequus, in this case - seed as he could get.

As gallons upon gallons of cum flooded Blueblood’s stomach, pushing his vest ever outward, a most peculiar thing began to happen. At some point, the size of his stomach stayed constant - despite the flood of cum still pouring down his throat from Discord’s neverending orgasm. Instead, Blueblood’s already oversized breasts began to swell, growing from D-cups to DDs, and then beyond, swelling past the size of soccer balls to watermelons. Discord shuddered with pleasure as Blueblood’s growing assets grew up and around his cock.

“Very good,” he said. He snapped his fingers a second time, and Blueblood’s cock began to swell - eight inches, ten inches, fourteen inches. “A reward, then, for being such a good slave.”

Blueblood’s body jerked, and suddenly a splat of cum blasted from his growing stallionhood - now a good sixteen inches, if not seventeen - and landed right on Discord’s face. Discord stuck his tongue out and slurped it all up, gulping it down eagerly.

“Mm, mm.” He grinned and pulled Blueblood’s lips closer to the base of his own cock. “And may you have many more to come.”