PIC: Justin Bieber, Selena Gomez Pack on PDA for His 17th B-Day

Credit: GRPR MOJO/GSI Media

Bieber had a very happy birthday indeed!

On Tuesday, Justin Bieber celebrated turning 17 with a special someone: Selena Gomez.

Two days after the couple publicly debuted their romance at an Oscars afterparty, Bieber and the Disney starlet, 18, went high-end shopping in Beverly Hills, hitting D&G, Louis Vuitton and other boutiques. See more photos from The Biebs' birthday outing.

Bieber and Gomez were finally unabashed about their mutual affection during their outing: They held hands and even leaned in for several intimate, sexy hugs.

Later on, the duo stopped by a Pinkberry, and reportedly grabbed dinner at L.A. eatery Maggiano (according to photos at PopSugar).

"I'm probably just going to chill for my birthday," Bieber said during a Monday radio interview on SiriusXM's The Morning Mash Up. "No party or anything. I just want to relax. I have four days off; I want to chill."

He and Gomez certainly had a whirlwind weekend: On Saturday, they spent the night in the penthouse suite at the five-star St. Regis Monarch Beach resort; the next night, they arrived hand-in-hand at the Vanity Fair Oscars bash.