Kendall and Kylie Jenner - Lead
Credit: Donato Sardella/WireImage

The Jenner sisters certainly know how to celebrate in a big way.

On Wednesday evening, 20-year-old top model Kendall Jenner took to Instagram to share how she wished younger sister Kylie a happy 19th birthday. One might have expected the big sister to formulate a secret surprise for the beauty entrepreneur—as the family regularly does on Keeping Up with the Kardashians—but this's year's gift took the cake.

Kendall apparently arranged a lavish fireworks display for Kylie and recorded the whole thing—plus Kylie’s jaw-dropping reaction—on video. In the clip, Kylie, Kendall, and her friends gawk at the sky and each whip out their phones to capture the moment. "Surprise! love, kenny," Kendall wrote in the post's caption. Watch the video here:

This wasn’t the only way Kylie celebrated entry into her last year as a teenager. She took to Instagram to share several picture-perfect 'grams of her day spent in a hot red bikini near the beach and on a boat with Kendall.

And friends gave a special serenade to the birthday girl—who described the milestone as “time of my life” and the “best birthday yet” on Instagram. Watch it here:

Sounds like the perfect day.