Credit: Jessica Simpson on Instagram

Jessica Simpson has only been on Instagram for only two days, and she’s already posted some of the cutest shots we’ve seen in a while. Case in point: Yesterday (January 15), the mother of two shared an intimate moment with newly-engaged sister Ashlee and fiancé Evan Ross that had us smiling from ear to ear.

The black and white snap shows Ashlee snuggling up to her big sis on one side, while Evan flanks her other side, grinning broadly. Jess is also holding Ash’s hand up to the camera so we can all see the bride-to-be’s gorgeous engagement ring.

“Family Moment,” the elder Simpson captions the joyous photo. Seriously, these three couldn’t look happier!

Even cuter is the fact that we can also see Jess’s diamond ring right alongside Ashlee’s in the pic. We are loving the fact that these two sisters can enjoy their engagements together!

Ashlee, 29, and Evan, 25, (son of legend Diana Ross) were engaged earlier this week in Hawaii after their almost-decade-long friendship turned into a romance last year. Meanwhile, her 33-year-old sister Jess has been engaged to former NFL player Eric Johnson since 2010 — though the couple already has two children: Maxwell, 1-and-a-half, and Ace, 7 months. This will be the second marriage for both sisters: Jessica was married to 98 Degrees’ Nick Lachey from 2002 to 2006, while Ashlee and Fall Out Boy’s Pete Wentz were hitched from 2008 to 2011 (they share a son, Bronx Mowgli, 5).

Wonder which one will walk down the aisle first! Our bet is on Jessica, who’s said she’s ready for a wedding after her two pregnancies. However, Ashlee might surprise us and beat her to it!

Who do you think will tie the knot first? Tell us your thoughts in the comments below!

Samantha Lear is an Assistant Editor at Wetpaint Entertainment. Follow her on Twitter and Google+!