Celestia has revealed to Cadance that while satisfaction is key for alicorn ascension in mares, if Cadance wants her husband to be an alicorn, it's going to take something different. Sexual frustration is what causes ascension in stallions.

Shining Armor knows none of this. All he knows is that Cadance has been acting strangely lately, and he intends to get to the bottom of it.

Contains: cuckolding/infidelity (but not really), big cock, belly-bulge/inflation, excessive cum, impregnation.
Cover image cropped from artwork by Arareroll.