If you're Kevin Federline, you can never be too rich, too thin or have too many children. Sadly, he could probably use more cash, less weight and fewer offspring. The professional sperminator is about to add another dependent to his tax forms. According to E! Online, the father-of-four impregnated longtime girlfriend Victoria Prince, giving his famous ex Britney Spears one more mouth to feed. It's long been thought that Federline is a sponge who continues to feed off the "Hold It Against Me" singer. Sources confirm that Prince is five months along and the couple is "totally happy." While the failed rapper's rep had no comment, we're sure his wallet is still mourning the potential loss of even more money. Baby number five should be no problem as he's had plenty of practice with the first four. The Fedster has two kids by former girlfriend Shar Jackson and two kids with Spears. A Spears insider didn't have much comment about the news, only saying, "She's focused on her work right now." Federline should consider buying stock in Pampers at this point or spring for a vasectomy.