John Legend's model wife Chrissy Teigen has lashed out at critics online after receiving a series of nasty comments about her weight in response to a photo she posted on

The 28 year old shared a series of four pictures of herself in a white spaghetti-strap crop top and a high-waisted skirt on her page on Thursday (24Apr14) after attending the MTV upfront Tv presentations in New York, but some of the feedback she received was far from kind.

One user simply stated, "You gained weight?", while another wrote, "Putting on that weight momma".

The rude comments prompted outspoken Teigen to hit back at her detractors on, writing, "Honestly f**k you all. Why do I even open anything up to you?

"In what other real life situation would you walk up to someone and tell them they're fat or gained weight? Seriously you are Pos (pieces of s**t). I don't know why I am always surprised when you let me down. I gotta get used to this s**t. It's amazing to me that I am told to get over the a**holes but the a**holes are never told to stop being pieces of s**t."