They may have gotten the lowest scores on Monday night's premiere of Dancing with the Stars, but off the dance floor Lacey Schwimmer and Mike Catherwood are winning in love, RadarOnline.com has learned exclusively -- even after the network warned the dancing duo to turn down the heat!

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"The network asked them to tone down the sexual undertones," a source close to the pair told RadarOnline.com exclusively. "They know there is a spark there -- everyone is talking about their amazing chemistry."