John Luke Robertson and Mary Kate McEacharn haven't officially tied the knot yet, but the whole Robertson family from Duck Dynasty is already treating her as part of the family.

In fact, Mary Kate just spent a fun-filled summer vacation with the Robertsons. On her Instagram account (@missmarymcmcmc), she shared a photo of her and John Luke standing by the beach and wrote, "Can't even put into words how incredibly blessed I feel after spending a week at the beach with this boy and his sweet family. God is so, so good."

She also shared several other photos with the rest of the Robertson family. In one, she was riding a bike while her best friend Sadie, younger sister of John Luke, and another girl were on skateboards. "Enjoying my birthday bike and these super cool long boardin' friends of mine," she captioned the photo.

Another photo showed her and John Luke showing off their "catch of the day," while in another, John Luke was seen sailing on a boat. "Wedding countdown going strong...so close to marrying this little sailor," she wrote.

John Luke, on the other hand, cannot wait for the day he finally gets to marry Mary Kate. On his Instagram account (@young_and_beardless), he posted a photo of a beaming Mary Kate who is nestled in his arms and wrote, "This is the first summer I wish would go by faster."

John Luke earlier told E! News that he hopes that he and Mary Kate will experience the same kind of love his parents Willie and Korie share.

"I know my parents married young as well, and they have always been examples of what 'could be' to me. Fast-forward 22 years and they are more in love than ever, and I hope Mary Kate and I are the same way in the years to come. God has truly blessed us," he said.