Kelly Osbourne laughs off bikini photograph fail

Kelly Osbourne has found the funny side of an unfortunate photograph error which made it seem like she had a baby arm.

On Monday (17Apr17), the TV personality shared a picture of herself and sister-in-law Lisa Stelly posing in a swimming pool, wearing matching tropical print bikinis and holding drinks.

"#SisterSunday #DivaLife with my sis @mrslisao #BestPoolDayEver," she wrote in the original caption.

Eagled-eyed followers were quick to notice that a baby's arm wearing an inflatable armband appeared behind Lisa, making it look like Kelly's left arm had shrunk down to baby size.

After the snap went viral, Kelly returned to Instagram to post it again, this time with a drawn red circle and arrow highlighting the error.

"Check out my sexy baby arm!" she joked. "The most hysterical yet #epic #PhotoFail! This is instant karma For trying to hide my fat a*s behind Lisa while holding my niece!"

It seems Kelly had been holding her brother Jack's daughter Andy, who was born June 2015, in her left arm, which was hidden behind Lisa's back.

Jack and Lisa, who wed in 2012, are also parents to daughter Pearl, who turns five later this month (Apr17).