The Duck Dynasty star proposed to girlfriend Mary Kate McEacharn on Saturday, later posting a sweet snapshot to share her response.
"She. Said. Yes," Robertson, the eldest son of Willie and Korie, wrote on Instagram alongside a picture of his bride-to-be flashing her ring next to a "Future Mrs. Robertson" sign.
The Duck Dynasty star had plenty to celebrate: Saturday was also his 19th birthday.
"Happy Birthday to the boy I'm going to marry," McEacharn added on Instagram.
No surprise here: The engagement seemed like a true family affair. "She said YES," wrote Rebecca Robertson, sharing a photo with the couple. "@missmarymcmcmc so excited to be your sister."
Mostly, we're hoping cameras were rolling to capture their engagement. Teased fellow A&E star Reed Robertson on Twitter: "Coolest engagement/birthday party ever."
She. Said. Yes. @missmarymcmcmc