Applejack helps Rarity to make a sad thing beautiful, as perfect as it can be and more, and then they decide- well, mostly Rarity actually- that having a foal of their own is a marvellous idea.
Yes. Applejack is somewhat confused too.

Comedy tag for some light-hearted humour and parenting antics.

For 394VikingPinkiePie who inspired this story with her artwork. I highly recommend following the link and browsing her DeviantArt. She also made that adorable cover art.