Louis Tomlinson has a reputation as the most straight talking member of One Direction, and he's ok with that.
He's thrilled with the success of his band as any of the other lads - but he's not as good at letting rudeness slide.
By his own admission, he "likes an argument".
Louis' rep as the tough talker was cemented when 1D got into a Twitter spat with boyband rivals The Wanted.
And the arguing doesn't stop at Louis' computer screen - he's happy to share his less than complimentary opinion with interviewers.
Not long ago, The Wanted's Max George called Louis a "d**k" in an interview with Fabulous magazine.
So when The Sun asked Louis' thoughts on the far less successful band, he replied: “Whatever, Max. He’s nothing.
“That Jay’s a bit of a pr*ck. He sent me a really long message trying to patronise me... I replied with something immature but f*** it.”
He added: “You know me, I like an argument.”
Sadly, sometimes these arguments aren't just about him.
The 21-year-old struggles with the negative attention his long-term girlfriend Eleanor Calder receives.
He explained: “Things really bother me when they upset my family or Eleanor.
“I think I’m quite thick-skinned but if you’re going to do or say that, f*** you.”
“It hasn’t been easy at times.
"She gets pretty intimidated by it all. I mean, who wouldn’t? She can’t have Twitter or anything like that.
“At first, I was like, ‘Just chill out a bit, it’s fine’, but now I understand where she’s coming from.
“I can’t expect her to deal with some of the stuff so easily. But with that said, I couldn’t be happier with her.”
Since the group's fame reached new heights, the couple find it nearly impossible to walk around together.
So Louis has become a dab hand at throwing a private party.
He said: “I love a big party, I love to host them - they go right through.”
Louis described his New Year's Eve bash: “It was wicked. I got the caterers in, the whole shebang.
“At 3am, they served bacon sarnies to give everyone a bit more energy to carry on.”
All this partying takes its toll, even on the young - Louis actually ended up feeling pretty rough by the end of 1D's Take Me Home tour.
It may also be his "just get on with it" attitude - he's got no time for supplements: “I don’t bother with anything like that.
"Sometimes the boys have the odd B12 vitamin shot but nah, it’s not for me.”
No one wants to get a B12 vitamin habit now do they...
So what about the future?
He said: “When you sit and think about it, it’s so rare. What has happened to us is almost impossible to understand.
"I’m hoping that when I’m 70 and in my favourite chair, I’ll turn round and say, ‘Wow! That was great’.”
Seems pretty great.
This Is Us is in cinemas from Thursday 29th August.