Sophie then shared a clip of Joshua lying back in the doctor's surgery, his hand dramatically covering his face.
"Anyone else's partner this dramatic?" the former Bardot band member captioned her Instagram Story along with a poll.
From behind the camera, Sophie can then be heard saying: "Ok it's in."
Joshua then looks at his wife-to-be and laughs: "Shut up, you're not being nice to me!"
Back in April, Sophie and Joshua celebrated their engagement with a lavish party held at their home.
The venue was decked out with an assortment of silver and white balloons and there was even a cake featuring Barbie replicas of the bride and groom.
Bride-to-be Sophie wore two stunning silver dresses - a custom Velani silver floor-length gown and another shorter silver frock that she presumably changed into to dance up a storm in.
"I wish I could have invited you all.This is our engagement party at home. I feel very lucky," she wrote on Instagram.
The couple announced their exciting news in January after much engagement buzz.
"Told you I'd tell you guys first I'm engaged," Sophie said in the caption, alongside a pic of her and Joshua embracing with her sparkly diamond ring on show.
"I honestly can't thank you enough for all the love and support. I know I have the coolest people following me and you've always had my back and I feel so cared about. You're absolute bloody legends. I'm not very good at being mushy. I'm trying to say I absolutely adore you."
"@joshuargross and I are so happy. Josh designed a very personal ring with my favourite Aussie designer @luke_rose_jewellery and I LOVE IT."
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