Jenner posted a series of sweet images of Scott with a surprise caption. 

Jenner hasn't been shy about wanting more children, but who would have thought she'd want to try so soon. Her caption is a message of love and support towards Scott with a shocking twist at the end: 

"watching you evolve into the partner, friend, son, and father you are today has been so fulfilling my real life bestie & hubby all wrapped into one. i love you and I’m so so proud of you. happy happy birthday. let’s f*** around and have another baby."

Scott replied to his girlfriend's post with another sweet message. 

Scott and Jenner often refer to one another as husband and wife and have matching rings, but there has been no confirmation of an engagement or wedding. The young billionaire's sisters have made comments about the two's relationship status, and even they are in the dark. 

Kylie Jenner and Travis Scott are closer than ever despite reports that Scott cheated. 

Jenner posted this sweet pic of Travis and herself at Kanye's Easter Sunday Service. The two continue to post happy couple posts, including the beauty mogul's birthday shout out to her man on Instagram. 

Jenner produced the whole party and "creative directed," too. 

In this video originally from the celeb's Instagram story, she and Scott ride in the spinning, foggy elevator. She claims to have "creative directed this whole party," to which Scott jokingly replied "whatever." Perhaps Jenner should have acknowledged his influence in the design aesthetic, too. 

The couple shared a kiss shortly after getting tattoos at the party. 

The party had all of the necessary requirements, including an in-house tattoo studio. While it's still unknown as to what the couple had etched on their skin, they are no strangers to matching ink. They each have a butterfly tattoo in honor of their daughter, Stormi. 

Cactus Jack, Scott's shoe collab with Nike Air Jordans, was an ongoing theme throughout the party. 

The rapper recently started a collaboration with Nike Air Jordans and created the shoe, named Cactus Jack. Jenner made sure to include plenty of shoes to remind everyone of the rapper's merchandise successes. Shoes hung from trees and the Cactus Jack label was all over gas station supplies like paper towels, liters of soda, cleaning sprays, and even a Hennessy slushy maker. 

Kendall Jenner posted a picture on her Instagram story of the gas station props with the Cactus Jack label. 

Jenner posted this shot of those Cactus Jack-themed gas station supplies. The gas station room at the event was a hit for all of the partygoers. While these aren't the most practical party favors for a rapper's birthday party, they made for great social media content — everyone was posting about it on their stories.

Kim Kardashian and Kendall Jenner both showed their sister's beau some support on his birthday. 

Kardashian looked as if she was having a blast enjoying the trippy visuals while partying with her youngest sister. Kanye West joined in on the fun, too, and sipped at one of the Hennessy slushies following his wife and her entourage of friends. Kendall Jenner was seen wearing leather pants, a dark graphic tee, and neon green thigh-high boots.  

\Scott posted this shot of his brand-new Lamborghini, gifted to him by his billionaire partner.

Because what else would a billionaire get their s.o. for a birthday gift other than a luxury sports car? Jenner gifted Scott this Lamborghini complete with a red bow on top; cars are reportedly among her favorite presents to give and receive. 

Jenner and Scott held a more family-friendly event earlier this week. 

Scott's birthday coinciding with the Avengers: Endgame premiere worked out perfectly for the Marvel fans. The couple plus their one-year-old daughter, Stormi, dressed as characters from the film and celebrated both the release of the movie and Scott's birthday. The birthday cake had tiny replicas of the family in costume.