Kylie Jenner has blamed her "pregnancy brain" for not being able to think straight, as she joked with her sister Kendall Jenner.
The 24-year-old Keeping Up With The Kardashians star is expecting her second baby with on/off boyfriend Travis Scott and she has admitted that she "couldn't keep it together" as she tried to explain to her fans what she is up to, during a video on her Instagram story.
The make-up mogul was with her 25-year-old supermodel sister Kendall in the video, as the pair took time-out to visit a Starbucks drive-thru for some liquid refreshment.
Kylie was looking incredible as she showed off her burgeoning baby bump while sat in her custom-made Rolls-Royce SUV, which has an all pink interior.
She showed herself rubbing the bump while wearing a form hugging black outfit as she sat with Kendall.
Speaking to her followers, Kylie stumbled over the words as she said: "My sister came to get me... umm... to come with me to get Starbuck."
Kendall, who was wearing a white T-shirt and jeans, started laughing at Kylie before asking her sister: "Are you OK?"
Kylie immediately jokingly replied: "No! I have pregnancy brain. I can't get it together."
She then attempted to inform her fans what was going on: "But she came with me to get Starbucks In and Out."
The pregnant reality star then showed a pink-coloured iced drink to the camera.
Her trip to Starbucks came just hours before the Kardashians were celebrating the engagement of Kourtney to Blink-182 drummer Travis Barker.
The musician proposed to the eldest Kardashian sister in a rose-filled area on a beach before flashing her sparkling diamond ring at a lavish dinner afterwards to celebrate the big step in their relationship.
Kylie was excited to share Kourtney's Instagram post in which she captured the moment that Travis proposed, captioning the romantic photo with : "Forever."
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