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He's working his way into the KarJenner clan one member at a time!

Kendall Jenner chilled poolside with a mystery man, who was covering his face with a towel, and posted it on Instagram, and people rushed to assume it was the supermodel's beau A$AP Rocky. Upon further investigation, we realized the cat walker had tagged sister Kylie's new boyfriend Travis Scott!

Rumors circulated yesterday that the LipKit queen and the rapper had secretly tied the knot, and now more reports are coming in that Kenny was the only one to know about the nuptials!

"Kendall [Jenner] is the only family member Kylie told. Kylie feels like she's grown, and this is her way of breaking off from the family — especially from [momager] Kris," a source dished to Life & Style.

"The reason Kylie didn't tell Kris or most of her family about the wedding was because she knew they'd all panic and react negatively," the source added.

The Vogue cover girl might have her own wedding in the works! She was recently spotted with a giant diamond ring on her wedding finger as she grabbed a meal with A$AP in NYC, instantly sparking engagement chatter.

The Jenner gals are all grown up!