'Teen Mom' star Farrah Abraham a role model?

Farrah Abraham, star of the porno "Farrah Superstar: Back Door Teen Mom," sees herself as a "role model."

But Catelynn Lowell, another teenage mother on the MTV show "Teen Mom," tweeted that Abraham sounded like "a dying horse" in her record-breaking adult video.

Asked by Us Weekly to comment on that criticism of her sex tape, Abraham replied, "I know what jealousy looks like. I am trying to be a role model for the other teen moms. I try not to knock them down. I try to better them."

She added, "Catelynn has a weight issue, but I don't say harsh things about her to hurt her self esteem."