Lena Dunham celebrated her 33rd birthday with Brad Pitt.

The “Girls” creator said: “This year, I’m . . . wait for it . . . happy. And so grateful for where I am, who I am, and everyone who has helped me on my way to health & sobriety.”

She hosted an LA fund-raiser for Friendly House, a recovery home for women.

Pitt, who stars with Dunham in “Once Upon a Time in Hollywood,” was among the starry guests.