The Glaze family hasn't had the best luck on dating shows.
Marshall even shared a hilarious FaceTime exchange between the pals, with Justin calling Marshall "America's favorite hopeless romantic."
"Have I ever been the jealous type? Come on," Justin quipped. "America, this man deserves everything and more that he's receiving. This man has been writing sonnets since the moment that he's been out of the womb. We would all be playing sports. What was he doing? Writing poetry to his future wife. This is how he's always been... I'm so happy for him."
In another TikTok earlier this week, Marshall and Justin joked about the reluctancy they feel when it's "time to represent the family."
But on a more earnest note, Marshall went on to explain the deep connection the pair share, which goes back generations.
"In our family, we have a legacy: The Brown Legacy," the reality star wrote in the caption. "Although our surname is Glaze, we come from a foundation and long line of Brown's who have represented well throughout history up and down the east coast. Justin and I grew up like brothers and although we may be slightly different on the exterior, we are identical at our core."
Keep reading to see more stars who are surprisingly related.