It all started when Farrah tweeted the cover of her new autobiography, which features a photo of herself and six-year-old daughter Sophia.
Farrah Abraham (@F1abraham) March 4, 2015
She added the caption: "Look @ covers as you collect them #ActionsSpeakLouder. Why aren't there more children on the covers #TrueStory @MTV."
Her tweet prompted Amber to reply: "What does this mean?"
It seems Amber felt this was a dig at her own book cover, which features a picture of just herself, rather than Amber and daughter Leah, six.
Amber tweeted: "I did it out of respect for my six-year-old who shouldn't be on the cover of a book talking about drugs and sex. Love not hate."
Kailyn Lowry, meanwhile, tweeted: "I'm got a great mum because my sons are not on my book cover, everyone." She added a crying with laughter emoji.
She also retweeted someone who took a dig at Farrah's adult movie career, saying: "If someone wants to do porn, that's their prerogative. But don't act holier than thou over something like a book cover. Just no."
Kailyn also told one follower: "We are all on the same show trying to get across the same message. Some more than others. But us especially in this whole thing together should be lifting each other up not tearing down."
Farrah hasn't replied…
Amber and Farrah have reunited alongside Catelynn Lowell and Maci Bookout for Teen Mom OG, a look at what the original cast are doing now. It's been no secret, however, that not everyone is pleased Farrah is back…
Kailyn, meanwhile, appeared on Teen Mom 2.
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