Amber Portwood and Kailyn Lowry have responded to Farrah Abraham's book cover diss.

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Last week, the Teen Mom OG star tweeted about her book cover, which features her daughter Sophia, wondering why her fellow Teen Mom stars, including Portwood, also of Teen Mom OG, and Lowry, of Teen Mom 2, failed to include a photo of their own children. On Twitter, they explained.

"Look @ covers as you collect them #ActionsSpeakLouder why aren't there more children on the covers #TrueStory @Mtv," Abraham wrote last Wednesday.

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While Abraham's cover of "My Teenage Dream Ended" includes her daughter, Sophia, the covers of Portwood and Lowry's books, "Never Too Late" and "Pride Over Pity," respectively," feature solo shots of the Teen Mom reality stars.

After seeing Abraham's comment, Portwood explained, "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."

Later, Lowry joked, "I'm got a great mum because my sons are not on my book cover, everyone," and then added, "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."

Abraham hasn't yet reponded to Portwood and Lowry's tweets.

For more Farrah Abraham, tune into Teen Mom OG, when the series premieres on March 23 at 10 p.m. on MTV.