Kylie Jenner wasn't done celebrating, as she posted some more sexy snaps on Instagram later in the day.
The newly-minted 20-year-old kept the party going with two shots of her hanging out with a pink motorcycle.
Some massively tall peep-toe platform heels made the saucy number even edgier.
Her pink-tinged wavy tresses were parted on the left and fell down past her ample bust.
In addition to posing in front of the vehicle, the youngest Jenner took the opportunity to provocatively straddle the vintage machine for a different shot.
The birthday girl somehow managed to warrant a police escort as she drove along in her eye-catching orange Lamborghini.
Though it wasn't clear what necessitated the attention from law enforcement, she eventually exited the freeway safely.