"Mama Lion with cubs," she captioned the sweet, black-and-white photo, using multiple heart emojis.
People magazine reports the photo could be from last month, when the family gathered to celebrate Riley's big 3-0.
The King's princes and princesses
The photo matches a video Presley shared at that time showing Riley becoming emotional over a gift from her siblings.
At that time, she explained, "@rileykeough surprise Bday present from me and the girls was to record Riley and mines song together (tiny dancer by @Elton john of course) which was emotional enough. But the bigger surprise was when the chorus kicks in of her sisters singing w me. See Video of her totally Raw reaction. Hope you enjoy watching 😀👍."