There's a lot of history between Dusk Shine and Princess Cadance. She was his foalsitter for the longest time, she was one of his closest friends growing up, she ended up marrying Dusk's older sister, Gleam, and becoming part of the family.

As couples are wont to do, Gleaming and Cadance are interested in parenthood, and as a result, are looking for somepony to help plant the seed to grow a new family tree, so to speak.

And dear Cadance knows exactly who she wants to plant it...

Kinks: R63, femboy, Amazoness, ara-ara energy, size difference, enormous male endowments, overly-large insertions, excessive cum, cum inflation, mating press, impregnation, pseudo-incest.

A revision/reboot to an older series that's been in the works for a while.

Artwork by Amethystdust on Derpibooru