Accompanied by several friends, they spent time at a shooting range Saturday to mark the happy occasion. Kylie, 19, posted a slew of photos and videos from their night out on Snapchat.
Kylie, Tyga and their friends later celebrated with a fancy dinner. The Keeping Up With the Kardashians star traded her black sweatshirt and pants for a slinky white bodycon dress with spaghetti straps, paired with matching pointed strappy pumps. The rapper remained in his day outfit—a black Tupac T-shirt, red pants and sneakers.
Kylie posted on Instagram a photo of her seated at a table with a Champagne flute and a plate of pomegranate seeds.
At the dinner, Tyga was presented with a birthday cake that contained a childhood photo of him.
Kylie also shared a video of Tyga wearing one of his birthday presents—a diamond bracelet.
"60 carats for my baby," she wrote on Snapchat.
Snapchat / Kylie Jenner
Kylie later took to social media to wish her beau a happy birthday with a series of racy photos, including two showing her embracing him while she's topless.
Watch the season finale of Keeping Up With the Kardashians tonight at 9 p.m., only on E!