Billie Lourd Sends Birthday Wishes to Boyfriend Taylor Lautner -- See the Cute Pic!

The 'Scream Queens' star paid tribute to her 'number onesie' on Instagram.

Happy birthday, Taylor Lautner!

The former Twilight star turned 25 on Saturday, but not without an adorable birthday message from his girlfriend, Billie Lourd.

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"???? happy birfday to my #numberonesie," the actress captioned a cute Instagram snap of the two rocking matching onesies.

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Lautner has definitely been there for Lourd after the tragic deaths of her grandmother, Debbie Reynolds, and mother, Carrie Fisher, in December. In fact, the actor helped her "find the funny" at a onesie party with friends last month.

"This group of onesie clad supremely supportive humans (and many others #notpicturedbutinthepicture) are the kings and queens of my world #gratefulfortheirgreatness#friendsfindingthefunny," Lourd captioned a photo of herself, Lautner and their crew.

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Just a couple of weeks earlier, Lautner and Lord jetted off to Mexico for a little R&R away from the Hollywood spotlight.

See more in the video below.