Las Vegas, California – Kourtney Kardashian and Travis Barker keep fueling marriage rumors!

Over the weekend, the hot couple passionately made out on camera while attending the UFC 264 fight in Las Vegas.

However, fans speculate the extra spicy PDA session could've been because Kourtney and Travis are keeping a big secret!

Following their trip, their family has been sending them little gifts and coy messages — alluding that they may have something to celebrate.

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Let's examine the evidence.

On Tuesday, Travis' daughter Alabama shared a snap on her Instagram story of her dad holding hands with Kourtney as they're all smiles.

The teen wrote, "So happy for you guys," with two crying face emojis.

Afterwards, Kourtney took to her own IG story to post about a gift she received from Khloé Kardashian.

The 42-year-old shared the bouquet of white roses and a heartfelt handwritten note from her younger sister.

"Thank you Queen for being practically perfect in every way. I love you long time - Khloé," the Good American owner wrote to Kourtney.

The choice of flower seemed very bridal, and is clearly not Kourtney's favorite flower – which she received in bulk from Travis for her birthday earlier this year.

Now of course, these simple gestures from the couple's loved ones could have many explanations.

But we'd be remiss if we didn't say it's a huge possibility that Kourtney may have finally settled down!

The Keeping Up with the Kardashians star has been adamant in the past about not getting married.

She even turned down her former longtime partner Scott Disick's numerous proposals.

Still, the Poosh owner isn't doing much to dispel the juicy gossip!

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During a recent family trip to Disneyland, she sported a pair of Minnie Mouse bridal ears.

Additionally, Kourtney and Travis continue to share snaps from their weekend getaway where, as they donned fang-like teeth, she commented, "I want to suck your blood" with vampire emojis, to which he replied "My favorite."

Clearly, the two were up to some mischief in Sin City – where plenty of people and celebs have secretly wed.

But you know what they say: What happens in Vegas, stays in Vegas!

We just hope we get let in on the secret soon.