The TOWIE star was pictured nuzzling into her businessman beau's neck as they snuggled on a sofa on Sunday night (6 April).
She added the simple hashtag: "Love."
Boutique owner Billie and ticket broker Greg became engaged in The Maldives earlier this year, shortly after announcing that Billie is pregnant with their first child.
Billie's always kept her private life away from the TOWIE cameras but made a rare exception in February, when Greg was seen on camera with Billie.
Greg made his TOWIE debut in a scene which saw him and Billie revealing to their friends and family that they are engaged and that Billie is expecting a baby girl.
In truly creative style, they broke the happy news by cutting into a tasty looking cake to reveal the sponge filling was pink-coloured.
Greg added: "When we were recently on holiday in the Maldives, I asked Billie to marry me. Luckily she said yes and I'm over the moon. Hopefully the wedding will be sometime next year."
As well as celebrating an engagement and pregnancy, busy Billie is also celebrating the launch of her children's clothing boutique Jam Kidswear.
What a year – and it's only April!
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