BRITNEY'S BABY BUBBLE BURSTS!

Can't find love & chasing off sperm donors

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MOM of two Britney Spears is desperate to have another kid, but insiders say her hunt for a dream sperm donor has so far hit a dead end mostly because likely candidates fear getting involved with the wacky wild child!

The 42-year-old Criminal singer is currently locked in a lingering split from ex Sam Asghari, 30, who she hoped would be a baby daddy, but instead clobbered her with divorce papers in August after 14 months of marriage.

He's accused the songbird of outrageous antics like posting nude pics of herself and cheating, which she denies.