Cadance takes pity on Luna's nonexistent love life and decides to help her dear auntie out ... by sharing her husband. Of course, there is a bit of risk – Shining Armor has a history of knocking up alicorns...

Contains: impregnation, slight cuckqueen, threesome, infidelity with permission, very very distantly related incest, a little bit of lesbian touching, cum-swapping, very slight belly bulge, brief mention of possible sibling incest.
Cover image adapted from 2071420 by prsmrti.