Too close for comfort? Fans are slamming Khloé Kardashian after she shared a birthday tribute to her “best friendScott Disick — who also happens big sis Kourtney‘s ex-boyfriend and baby daddy — on Instagram.

“Happy birthday to my brother @letthelordbewithyou!!! I am so thankful to have such an incredible addition such as you to our family!” the 34-year-old captioned the series of shots. “We have come such a long way, you and I! I am so thankful for the person that you have grown into. I am thankful for every highs and lows because we have been through it all and we are closer than ever. I am proud to say that you are my brother and also one of my best friends! Have the best birthday Lord!! FOREVER the Lord and the Lady.”

In response, one person wrote, “What a weird relationship and a disgusting one. I think that’s disrespectful that you’re so close to him after he dated your sister.” Another agreed, writing, “Am I the only one who finds their friendship really weird? Only because that’s her sis’ baby daddy.” A third, meanwhile, chimed in, “Refuse to believe they’ve never shagged.” #Awk!

While Kourtney did not celebrate the 36-year-old’s birthday publicly on the ‘Gram, plenty of other Kar-Jenners did. Kim Kardashian posted a throwback photo of Scott with a 10-year-old Kylie Jenner in 2008 to mark the occasion, while momager Kris Jenner captioned a series of pics, “Happy birthday Scott!! @letthelordbewithyou you are the most incredible father to Mason, Penelope and Reign, and I thank God every day that you are a part of our family. I love you so much! #HappyBirthdayScott.” Aww.

Kourtney and Scott dated for nine years before breaking up in 2015. They share three children together — daughter Penelope, 6, and sons Mason, 9, and Reign, 4. Despite their split, the Lord and Koko have remained close. So close, in fact, that the duo raised eyebrows when he shared a snap of Khlo in a tight outfit and called her his “Woman Crush Wednesday.”

“Been waiting all week to post this,” he wrote in the caption, to which she responded, “Hahaha!! I love you Scott!”

Sigh. It’s all in good fun, y’all! Although their romance would make for a seriously juicy KUWTK storyline …

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