Heavily pregnant Jenna Jameson wears catsuit and a cardigan for outing with her fiance 

She is expecting her third child in April.

And Jenna Jameson showed off how well her baby bump is coming along on Sunday.

The heavily pregnant former porn star highlighted her burgeoning belly in a tight black sleeveless catsuit.

Mum-to-be: Jenna Jameson showed off how well her baby bump is coming along on Sunday

The adult film actress was barely recognisable from her on-screen persona as she stepped out in The Grove in LA with fiance Lior Bitton.

She finished the look in a cosy pair of knee high black boots, a long brown cardigan, and a black beanie.

The 42-year-old announced in August that she and her Israeli diamond dealer beau were expecting a child, who is due in April.

She already has twin seven-year-old boys  - Jesse and Journey - with her UFC star ex-husband Tito Ortiz.

Who's that girl: The adult film actress was barely recognisable from her on-screen persona as she stepped out with fiance Lior Bitton

During his stint on season seven of Celebrity Apprentice, Jenna met now-President-Elect Donald Trump - whom she supported during his election campaign - when she appeared on two episodes to assist Tito in his tasks. 

One month ago Jenna announced on Twitter she had completed her conversion to Judaism.

One religion she certainly won't be converting to any time soon is Islam, if her Twitter feed is anything to go by.

On Sunday night she launched into something of an anti-Muslim rant, posting graphic images of atrocities and suggesting that the religion was to blame. 

Last week she got embroiled in a Twitter spat with ex-KKK Grand Wizard David Duke, after he had a dig at her for tweeted she had a crush Israeli Prime Minister Benjamin Netanyhu.

Number three: The 42-year-old announced in August that she and her Israeli diamond dealer beau were expecting a child, who is due in April. She already has twin seven-year-old boys 

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