Jennifer Aniston's ex Justin Theroux, 52, bares muscled arms during rare sighting with girlfriend Nicole Brydon Bloom, 29, in NYC

Justin Theroux,52,cut a characteristically dashing figure while out with his girlfriend Nicole Brydon Bloom,29,in New York this week. 

The ex-husband of Jennifer Aniston was a smoldering sensation in a tank top that bared his musclebound arms and fell flatteringly over his toned torso.

His outfit emphasized his youthfully fit physique to full advantage as he sauntered down the street,walking his bicycle next to his girlfriend.

Justin and Nicole were first spotted together in February of this year,and have only infrequently surfaced in public as a couple ever since.

He and Jennifer were married from 2015 until 2017 but managed to stay friendly after what Justin has called a 'gentle separation.'

Justin also enjoys a famously amicable relationship with his ex-wife Jennifer Aniston,whom he was with for a total of seven years; pictured at the Vanity Fair Oscar Party in 2017

Jennifer and Justin first started dating in 2011,having worked together on the film Wanderlust. He had carried on a 14-year relationship with costume designer Heidi Bivens that collapsed in 2011. 

At the time,a friend of Heidi's told E! News claimed that Heidi had been 'straight-up dumped,' though the outlet made sure to qualify: 'Not to say it's Aniston's fault,maybe the timing was just terrible?'

A source in Justin's camp insisted to Page Six: 'Things were already over between him and Heidi before he got close to Jen.'

Heidi's mother Marilyn spoke to Radar Online in 2016,claiming that Justin initially tried to persuade Heidi he and Jennifer were not an item.

Marilyn asserted: 'Heidi told me what Justin had told her,that something was going to be written about him and Jennifer,that something was going on between them and he wanted her to know that it was nothing,there was nothing to it.' 

In Marilyn's telling,Heidi allegedly ultimately discovered that the rumors were true,'[a]nd my sweet Heidi she calls me and says: "Oh mommy." I was going through cancer at the time. It was a time that hurt our family.'

Jennifer AnistonNew YorkJustin Theroux