Dancing with the Stars: Katherine Jenkins & Mark Ballas's Postcards from LondonThe pair take a break from rehearsals that have left Jenkins "aching in places I didn't know it was possible to ache in"

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Photos of the pair stepping out in London have caused British tabloids to speculate they are dating. "We [went] out to have a nice dinner and get to know each other and within 12 hours – that's all it took, before suddenly we're dating," Jenkins says of the "funny" rumors.