The Moet was flowing for the lavish dinner which saw around 50 VIPs head to the private members club at Soho House in West Hollywood.
The party came nearly six months after the pair first got engaged over New Year.
Sofia’s 21-year-old son Manolo shared a snap via Instagram which showed the Terminator star raising a glass to the seriously in love couple.
Manolo’s humorous caption read: “Congratulations to these two ugly people. It's so sad, but luckily they have me to aspire to, physically. #Congration #YouDoneIt #HappiestCoupleEver #EngagementParty #PapaJoeVolume2 #TerminatorGaveASpeech #HostedByBarryPeele.”
Modern Family star Sofia, 42, also published some photos from the party, as she flaunted her figure in a stunning red dress while her hunky Magic Mike XXL fiancé Joe, 38, looked dashing with his hair slicked back.
It’s clearly been an eventful few days for the Colombian beauty, who has been locked in a very public fertility battle with her ex-fiance Nick Loeb.
Nick is contesting her right to destroy two fertilised embryos that the pair created when they were together.
The disgruntled ex took to US TV to defend his argument in an interview on the Today Show last week.
Determined to prove that she’s not letting the messy legal battle get to her, Sofia is clearly moving on with her own life, with her engagement to her handsome new man and also celebrating her very own star on the Hollywood walk of fame which she was presented with earlier last week. Sofia was the first Colombian actress ever to commemorated on the iconic walk of fame!