It looks like Kylie Jenner and Tyga are taking the next step in their relationship!

No, they're not getting engaged, despite rumors that the 17-year-old is pregnant with the rapper's baby, but they are one step closer to that whole commitment thing.

READ MORE: Shocking Details Behind Kylie Jenner's Alleged Pregnancy

Since Kylie and Tyga spend a majority of their time together anyway, reports claim the couple are practically living together. The reality star even has a key to the 25-year-old's Calabasas, Calif., mansion!

"She and Tyga call it her ‘emergency mansion in case something is going on at Kris‘ [Jenner] or Bruce‘s [Jenner] house," said a source. "She comes and goes as she pleases, and [knows] all the security codes needed to get in and out."

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Their relationship certainly doesn't sound like "just a close friendship" anymore — perhaps they're finally getting their priorities in check now that the Kardashian family have weighed in on Kylie's alleged baby news?

Sources revealed to 'Hollywood Life' that while Kim and Khloé Kardashian would be happy for their little sister if she was pregnant, they'd also be slightly upset due to their own personal struggles with trying to conceive.

READ MORE: Kylie Jenner Fuels Baby Talk With Shocking Instagram Photo

“They just want her to be safe and to be cautious and to make the right decisions," the source said.

'Hollywood Life' reported news of Kylie and Tyga living together.