'Birthday boy,' she simply wrote in the caption, alongside love-themed emojis.
This cute post comes three days after the two were spotted in a video filmed at Sydney Airport on November 21 and posted on news.com.au – where The Bachelorette couple revealed they are still together.
"She brushed me, didn't she brush me?" Laundy joked when asked about their relationship status.
"So this is a fully fledged relationship, there's no problems hear?" the cameraman asked.
To which Laundy responded, "I wouldn't waste my time coming to the airport if it wasn't!"
Monk then chimed in, "It's all good."
Monk also opened up about finding love with Laundy to Who.
"I was scared going in, but I knew the success rate, so that’s why I did it. I’d choose no one at the end if I wanted to — I wouldn’t be able to fake it. I couldn’t,"
This article originally appeared on Who.