Trouble already? The Bachelor's Nick Viall and Vanessa Grimaldi appear tense during a Hollywood outing... before smiling for the cameras 

They've been accused by fans of lacking chemistry, and things looked tense between new couple Nick Viall and Vanessa Grimaldi during an outing in Hollywood on Friday.

Dressed in matching black workout gear, The Bachelor hunk and his chosen lady appeared disconnected as they walked down the street together.

Nick, who kept his headphones in his ears, was seen walking with his arms folded, while his new fiancee kept her head down and was seen with a serious expression on her face.

Working it out: Vanessa Grimaldi and Nick Viall seemed tense as they walked through Hollywood dressed in gym gear on Friday

Working it out: Vanessa Grimaldi and Nick Viall seemed tense as they walked through Hollywood dressed in gym gear on Friday

All for show? Fans have accused the couple of lacking chemistry, with some questioning the legitimacy of their relationship

All for show? Fans have accused the couple of lacking chemistry, with some questioning the legitimacy of their relationship

After spotting the cameras though, the pair drastically perked up, both smiling and laughing with one another.

It comes after their awkward appearance together on After The Final Rose on Monday, which left some fans wondering if they were even together.

But Nick, 36, defended their strained appearance on the TV special.

Putting on a brave smile: The pair's moods drastically changed after they spotted the cameras in front of them

Putting on a brave smile: The pair's moods drastically changed after they spotted the cameras in front of them

'After The Final Rose had a heavy tone to it,' he told The Insider. 'We made a conscious choice to not show up and be like, "Oh my God..." Things are great, but also, this hasn't been the easiest.'

Vanessa, 29, also spoke about their controversial appearance on the show, saying they're just trying to be 'realistic' about their relationship.

'We're very optimistic about the future but it's just we are very realistic about real life,' she added.

Speaking honestly: 'Things are great, but also, this hasn't been the easiest,' The Bachelor hunk revealed of his relationship

Speaking honestly: 'Things are great, but also, this hasn't been the easiest,' The Bachelor hunk revealed of his relationship

But it wasn't just fans who noticed the tension between the pair.

After watching ATFR, last year's Bachelor Ben Higgins offered up some advice to the new couple.

'It sounds like their relationship is off to maybe a difficult start,' the 28-year-old told ET. '[Nick] needs to start investing in their relationship more than anything else. That would be my advice. It is a tough season of life.' 

All loved up: Despite reports of tension, the pair have been putting on a show of PDA on social media

All loved up: Despite reports of tension, the pair have been putting on a show of PDA on social media

The comments below have not been moderated.

The views expressed in the contents above are those of our users and do not necessarily reflect the views of MailOnline.

By posting your comment you agree to our house rules.