[Asriel looks terrified right now as Flowey wraps a few more vines around him. Flowey breaks eye contact and basically performs a shaft head tilt in order to look at Anya, still with a gigantic smile on him.]

...Long tale short? Little old me wasn't always a flower~. This was who I was before I died and my dust fell onto the flower that you are now talking to.

Isn't this extremely interesting?

[Flowey looks back over to Asriel.]

It's not often I get to see a reflection of my past like this~!