Kylie Jenner, Tyga Living Together In Blac Chyna's Old Mansion?

"Keeping up with the Kardashians" reality star Kylie Jenner and her rumored boyfriend, Tyga are reportedly living with each other despite hiding their relationship.

The youngest Jenner has been spotted spending a lot of time at the 25-year-old's estate in Calabasas a Hollywoodlife source revealed, "She comes and goes as she pleases," the source revealed, "She has a key to his place and all the SECURITY codes needed to get in and out."

The pair even gave the mansion a secret name for when Kylie gets into heated arguments with her mother, "She and Tyga call it her 'emergency mansion,'" the source says, "in case something is going on at Kris'[Jenner] or Bruce's [Jenner] house."

Although, people believe the couple have officially shacked up, the source says Kylie has her own space ion the multi-million dollar mansion, "She has her own room and bathroom there," the source CONTINUES explaining. "Her mother is fully aware of the arrangement and supports it and trusts that both Tyga and Kylie are telling the truth that no funny business is going on."

Recently, the 17-year-old is proving that she is grown enough to make her own decisions after posting a sexy photo of her new nipple piercing for the New Year.

The youngest of the Kardashian-Jenner clan posted a steamy photo of her in a gray crop-top shirt exposing her flat abs and brand new nipple piercing.

The not-so-young Kylie can't seem to have the attention peeled away from her as she continues to slightly enhance features on herself. The reality star has people buzzing once she appeared with larger lips and a larger breast cup size in addition to her colorful hair extentions.

Many wonder what the beauty will do next when she turns 18, but many are just waiting for Kylie and Tyga to finally confirm their relationship despite denying their rumored fling.

Although, many speculate that the couple is waiting until Kylie's 18^th birthday to confirm their relationship, Tyga recently told Vibe magazine, "I've known Kylie and the whole family for four years. I introduced Chyna to Kim about a year ago," he said. "But people wanna take the situation [with Kylie] to the next level."