When a Victoria's Secret model gets pregnant, this is what it looks like!

Rosie Huntington-Whiteley showed off her glorious baby bump in a tight black, body-don dress for her 30th birthday celebration at Soho House Malibu on Tuesday. The model was met by her model friends, like Behati Prinsloo -- who, by the way, just had a baby herself, which you'd never guess by looking at her super-slim post-baby bod!

Baby daddy Jason Statham was there as well, of course. The action hero actor is set to turn 50, himself. He's been dating Rosie since 2010 and the two become engaged last January.

Rosie posted this adorable pic below, commemorating her wonderful day, with the caption: "Thank you to everyone for all the special birthday wishes! My heart feels full of warmth and love turning 30 today!' she wrote. 'Being that it's such a milestone I can't help but look back, reflect and smile on all that life has brought me, whilst looking forward to the future and feeling as if life is just about to begin... quite literally ☺️. I am so grateful for all the incredible moments I have lived so far but mostly for all the people that I've met who have touched my heart along the way and for love and joy in my life today with my beautiful family and friends. Bye Bye 20's you were hot, hello 30's can't wait to see what you got in store for me!! #JustGettingStarted #1987 ❤️."