It's been awhile since we heard any news regarding Keeping Up With The Kardashians star Rob Kardashian's weight loss journey, or even seen him at all. Kardashian has not only spoken out about his weight but blasted any fans who has something to say about it.

Khloe Kardashian On Rumors She Evicted Rob Kardashian 'I Begged For Him To Live With Me'

He took to his Instagram page last Thursday, Feb. 5 and shared a series of throwback photos. In one, he flexes the muscles he once rocked, but let fans know that he is still "fat."

Kardashian captioned the snapshot, "Last throwback of the day and yes I'm fat now so yall haters can literally suck d---".

Kris Jenner Gives Troubled Rob Kardashian A Shoutout On Instagram 'He's My Everything'

 Last throwback of the day and yes I'm fat now so yall haters can literally suck d***

A photo posted by ROBERT KARDASHIAN (@robkardashian) on Feb 5, 2015 at 6:10pm PST

But he didn't stop there and reassured his nearly 3 million followers that he's on his way back to his "peak." He captioned a second throwback picture, "Last throwback of the night before I go play some fat boy ball !! MOTIVATION ...HELLO??? Aw s--- what time is it man?? Do you know what time it is ?! What's going on?! You alright ? Ahh what's wrong with you? "My baby mama kissed me but she glad I'm gone, she knew me and her sister had something going on,I reach my peak, I can't speak".

Kardashian shocked fans when he gained more than 75 lbs. in less than a year. It's not clear what caused the weight gain, but it got so bad that Kris Jenner had a breakdown over his struggles on Keeping Up With The Kardashians' previous season. She confessed she spent many nights crying herself to sleep.

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Rob kardashian, Rob Kardashian Weight Loss, Rob Kardashian Weight Gain