Sombra has won. The Sisters are dead, Her brother is dead, her sister and law are dead. He took both nations, the Crystal Empire and Equestria, as his own domain. For some reason, Twilight Sparkle is the last Alicorn standing, a grim achievement to obtain.

After her quick and bloodless capture, the New Sovereign has placed her in a specially designed cell just for her. For weeks, she is left at the mercy of deranged madstallion, that is, until the king intervenes.

Inspired by Blunt Whiskey's "My Little Slave" Comic. (NSFW)