Chatting with one of the Girls? Lena Dunham shows off her pert posterior in leggings as she takes phone call in LA

She became infamous for parading her extremely curvy physique on the small screen.

But born again fitness fanatic Lena Dunham took great delight in showing off her new slimline figure in a pair of tight leggings as she went for a stroll in Los Angeles on Wednesday.

The Girls favourite, who has toned up since becoming a disciple of fitness guru Tracy Anderson, looked in fine form as she took a phone call as she sauntered around the trendy Santa Monica area.

Otherwise engaged: Lena Dunham was spotted chatting on the phone in LA on Wednesday

Otherwise engaged: Lena Dunham was spotted chatting on the phone in LA on Wednesday

The 30-year-old was looking her usual jolly self as she pranced around in a denim jacket, pullover, green leggings, which highlighted her delightful derriere, and trainers. 

Lena, whose parents are wealthy artists and who is a relative of the Tiffany jewellery family, was spotted chatting on the phone as she wandered around, perhaps as she was setting up a meeting to discuss her future plans.

Her HBO series Girls, a critical favourite despite low ratings, came to an end on Sunday and managed to cause one final storm in a teapot.

Angry viewers took to Twitter after the final episode aired to moan about the twin baby boys cast to play the newborn son of Lena's character Hannah Horvath.

Their problem was the baby was black in their opinion, despite none of them knowing or citing the actual ethnic background of the twins. 

 Lena denim: The trendy actress opted to wear a jean jacket for her casual stroll

 Lena denim: The trendy actress opted to wear a jean jacket for her casual stroll

Texting Tracy? The Anderson disciple may have been seeking workout advice from her mentor

Texting Tracy? The Anderson disciple may have been seeking workout advice from her mentor

Chatting to one of the Girls? Or perhaps Lena was plotting her next career move

Chatting to one of the Girls? Or perhaps Lena was plotting her next career move

Dunham is a white actress, and the man who got her pregnant in the show was played by Riz Ahmed, a Muslim actor of Pakistani descent.

'Y'all no one can convince me that that beautiful black baby was Hannah's and that racially ambiguous surf instructor. #GirlsHBO #Girls,' wrote one Twitter user.

'How did Hannah give birth to a black baby?' asked another person on Twitter.

One man wrote: 'All you need to know about Girls ending is that Lena Dunham really wanted you to see her holding and mothering a black baby.'

Perhaps unsurprisingly, neither Lena nor anyone from Girls has commented on these tweets. 

Beach babe: The TV beauty showcased her delightful derriere in tight trousers as she wandered around Santa Monica 

Beach babe: The TV beauty showcased her delightful derriere in tight trousers as she wandered around Santa Monica 

Surprise, surprise: Outraged Twitter users were moaning about the finale of Girls on Sunday

Surprise, surprise: Outraged Twitter users were moaning about the finale of Girls on Sunday

Giving brith to more controversy: They complained  about the twin baby boys cast to play the newborn son of Lena's character Hannah Horvath

Giving brith to more controversy: They complained  about the twin baby boys cast to play the newborn son of Lena's character Hannah Horvath

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Girls Lena Dunham shows off pert posterior in leggings

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