Sources with direct knowledge tell TMZ ... KJ and TS are 100% together at the moment -- meaning they're romantically involved and, presumably, exclusive too. Not just that, but we're told they were a full-blown couple when this whole profile was coming together for W Mag.
The article/accompanying shoot seems to have been whipped up in early November.
Their relationship, as described to us now, is characterized quite differently in the latest issue for W -- for which Kylie and Travis were supposed to share the cover in a big feature story and photo spread ... but was scrapped in the wake of the Astroworld Fest tragedy.
W Mag scrambled to yank hard copy issues that had been mailed out -- but, clearly, some of them made their way to people's homes. TMZ obtained a copy, including the content inside -- and the author claims Kylie and Travis aren't actually together as a traditional couple.
The author writes, "Travis and Kylie seemed very comfortable under the sheets, but even though they will soon have two children together -- their daughter, Stormi, is 3 -- they are not a couple, and haven't been in two years. They're the modern family!"
W goes on to say Kylie seems to be following in the footsteps of her sisters, many of whom had kids with men ... without necessarily ever marrying them.
Like we said, the way W chronicles their relationship is pure speculation -- per our sources -- and you can tell as much, because neither Kylie nor Travis are ever quoted directly about defining it or framing it. The writer just states it as fact, which is incorrect.
One last thing, there's been much talk about co-parenting pertaining to these two -- but we've been assured, they're currently just parenting.