media_removed_toofab 102011
Carmen Electra
did an impromptu bikini photo shoot while babysitting her friend's kids yesterday in L.A. -- where the 40-year-old showed off her incredible bod!

Electra, who turned the big 4-0 last month, flaunted her toned tummy and impressive legs in a sexy baby blue two-piece ... which she paired with Louboutin heels, naturally.

Did your babysitter ever look like this?

Check out some more bikini pics in the gallery below, plus some of Carmen's hottest shots since she first burst onto the scene with "Baywatch" and "Singled Out" back in the '90s.

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