Kyliegave birth to her first daughter, baby Stormi, in February - and has been sharing her journey as a new mother ever since.
Considering what Khloe has been through in the past week and the fact Kylie is also a new mum, her congratulations felt a little flat.
Kylie added a tiny purple alien monster emoji as the caption of the pic, which featured her sitting next to her baby daddy as she sipped from a solo cup - with her highlighter pink hair glowing under the black light.
But on Friday, siblings Kylie Jenner and Kourtney Kardashian were spotted heading out of Los Angeles on an adventure via private jet.
To finish the look, Jenner added Acne Dinila Track Sole Ankle Boots (think of them as the ideal blend between a sneaker and workman boots) adding a chic and practical touch to her already next-level look.
The baby's father - Tristan Thompson - was also there to witness the birth, according to TMZ, despite being caught cheating on Khloe recently. She kept her pregnancy a secret until the birth occurred.