Jessica Simpson once again denies she"s having twins… as she explains her larger than average baby bump

'Apparently I have a LOT of amniotic fluid!' Jessica Simpson explains her larger than average baby bump… and she still has a month to go!

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UPDATED:

12:16 GMT, 20 March 2012

She has been forced to deny on several occasions that she is having twins because of her ever-increasing size.

But now pregnant Jessica Simpson has put her extremely blooming figure down to the fact that she has a lot of amniotic fluid.

'Apparently I have a LOT of amniotic fluid!' Jessica Simpson told Jimmy Kimmel about her larger than average baby bump on his talk show last night

'Apparently I have a LOT of amniotic fluid!' Jessica Simpson told Jimmy Kimmel about her larger than average baby bump on his talk show last night

Such a joker! Jessica also told Kimmel that when her water breaks 'it will be like a fire hydrant!'

Such a joker! Jessica also told Kimmel that when her water breaks 'it will be like a fire hydrant!'

Such a joker! Jessica also told Kimmel that when her water breaks 'it will be like a fire hydrant!'

The
31-year-old singer told Jimmy Kimmel last night that she had been told
by doctors that the excess fluid was to blame for her larger than
average baby bump.

And last week Jessica told chat show host Ellen that she still has a month to go, as the star is due to give birth April 20th.

Jessica joked: 'I feel I have a bowling ball sitting on my hoo haa!'

She then added candidly: 'Apparently I have a lot of amniotic fluid, so whenever my water breaks it will be like a fire hydrant!'

Bowling along: Jessica, seen here at her baby shower on Sunday, added that she felt like she had a 'bowling ball on her hoo haa'

Bowling along: Jessica, seen here at her baby shower on Sunday, added that she felt like she had a 'bowling ball on her hoo haa'

Blooming: Jessica wore a blue snakeskin dress for her baby shower, which had a Charlotte's Web theme

Blooming: Jessica wore a blue snakeskin dress for her baby shower, which had a Charlotte's Web theme

Blooming: Jessica wore a blue snakeskin dress for her baby shower, which had a Charlotte's Web theme

Jessica also spoke about how she and fianc Eric Johnson met, and when they are planning to tie the knot.

She said: 'Eric feels like my husband already, we
are just doing it a little bit backwards. We met at my house – he just
came with one of my friends to my house, we were watching March madness
or something.

'He came over and we sat on my stairwell and talked and I just haven't let him leave!'

Jessica's interview came as she was promoting her new TV show Fashion Star, and just a day after her baby shower.

Getting ready: Jessica earlier tweeted a picture of herself getting primped and preened ahead of the show

Getting ready: Jessica earlier tweeted a picture of herself getting primped and preened ahead of the show

Talking about the shower, which was
attended by her sister Ashlee and famous friends including Ellen Pompeo
and Jessica Alba, Jessica said:' I just had a baby shower yesterday
which was unbelievable.

'It was a Charlotte's web thing – we had a whole fair. We had fried Oreos.'

Asked by Kimmel if she was nervous about giving birth, Jessica said: 'No, I'm ready to push!'

Lash-tastic: Jessica looked radiant for the television appearance, with smoky eyes and nude lips

Lash-tastic: Jessica looked radiant for the television appearance, with smoky eyes and nude lips