Britney Spears arguing with her sons. SUBSCRIBE 4 MORE VIDEOS

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Kevin Federline posts videos of Britney Spears arguing with her sons
Britney Spears' ex-husband has posted a series of clips of their young sons arguing with their mother, as the warring parents step up their increasingly acrimonious fight.

Kevin Federline, 44, revealed last week that their sons Sean, 16, and 15-year-old Jayden no longer wish to spend time with Spears, 40.

The singer was devastated by Federline talking about the family rift, and posted a series of angry messages on Instagram, including one accusing Federline of exposing the teenagers to marijuana.

On Wednesday night Federline re-activated a long-dormant Instagram account to retaliate by posting the clips of their sons, which were filmed four years ago.

'I can not sit back and let my sons be accused in this way after what they've been through,' the father of six wrote.

As much as it hurts us, we decided as a family to post these videos the boys took when they were 11 & 12.

'This isn't even the worst of it. The lies have to stop.

'I hope our kids grow up to be better than this. #neverfeartruth
The first clip seems to be filmed by one of the boys inside their bedroom, as Spears walks in and berates them for failing to respect her.

The boy says: 'You come in here, when we're trying to go to bed, and you say...'

Spears cuts him off, replying: 'It's my house.'

Raising her voice, she continues: 'This is my house. If I want to come in here and give you lotion for your face, because it is coarse, and you tell me "no, it's fine, it's fine" - well, it's not fine.

'You better all start respecting me, are we clear?

'You all need to start treating me like a woman with worth. I am a woman, ok? Be nice to me. Do you understand?'

The second clip is filmed inside a car, with Spears in the passenger seat and the two boys behind.