Kevin Federline has reportedly demanded a £26 million pay-off from estranged wife Britney Spears.The fledging rapper has allegedly told Britney if she agrees to the settlement then he will not fight her for custody of their two sons, 15-month-old Sean Preston and four-month-old Jayden James.Kevin's demands are said to have left Britney in tears.A friend of the pop singer told Life and Style Weekly magazine: "Britney almost fell off the chair when she heard the figure. She has been crying practically non-stop. She is worried sick that she is in danger of losing her babies."Those close to Britney insist that despite her recent partying the 'Toxic' singer cannot stand being away from her children.The source added: "One night without them was all it took Britney to see how scary it would be if she lost the custody battle. She was emotional - there were tears in her eyes."Britney is also said to be keen on settling the custody disagreement as soon as possible.
The source said: "She has told her lawyers she doesn't want a long and nasty fight. She hasn't got energy for it."