Everyone knows that when you're in a long-term relationship - and especially when you have kids together - both parties need to work hard to keep the spark there.

This doesn't seem to be a problem for Travis Scott and Kylie Jenner, who appear to have this whole romance thing down.

This week, the Keeping Up with the Kardashians star took to social media to share the loving gesture her boyfriend of roughly a year and a half had made for her: an elaborate array of baby pink and white roses, with vases of them displayed around her house and petals scattered across the floor.

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Posting a video of the impressive scene, the 21-year-old, who shares daughter Stormi with the rap star, amassed 7.6 million views. So, why did Travis decide to do this for his girl? "Just because", it seems.

In her caption, the beauty entrepreneur told her 117 million followers: "Just because flowers are the best kind". She proceeded to raise the eyebrows of millions of people across America with the rest of her caption, writing: "thank u hubby".

Hubby? Were Kylie Jenner and Travis Scott planning on getting married? Had the couple gotten already hitched and we hadn't heard about it?

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Some fans seemed to believe this was the case, with dozens taking to the comment section to question the reality TV star on it. "Hubby? You guys got married??" asked Instagram user @popcultureconvos. They were joined by @arivana.love who wrote "They got married ???☺️?" and @rebecaalday who commented saying: "Hubby?? ??????".

Another fan noted how the rapper, real name Jacques Berman Webster II, has often referred to the TV personality as his wife, saying: "He calls her wifey, I think they're already married just saying."

However, others weren't so certain, with many rolling their eyes at the mention of a potential marriage between the pair. "Uhhhh ohhhh here come the speculations about marriage LOL??,' wrote daleshas_life, along with several others who shared their doubtful opinion.

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It seems unlikely that the loved-up pair have secretly tied the knot with no one knowing about it; after all, as pointed out by a fan in the comment section, Travis often refers to Kylie as "wifey" - for example on her birthday earlier in the year - so it's potentially nothing out of the ordinary for the pair to use these pet names.

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However, if they are hitched, it definitely wouldn't be the first time they've pulled a fast one on us all. Anyone recall the time Kylie hid her pregnancy from everyone?

The one thing we can likely all agree on is that the Butterfly Effect rapper's gesture was sweet as pie. The reality TV star is no stranger to receiving lavish gifts from her beau; in August, Travis bought her a white vintage Rolls Royce for her 21st birthday and back in February he treated her to a $1.4 million Ferrari when she gave birth to their daughter.

If an attractive young man fancies buying me something similar, I'm happy to send across my details.

Everyone thinks Kylie Jenner is getting married after latest social media post