This is a story about two young people with a special connection who just bought a house together to begin a new chapter of their lives ... Derek Hough and Mark Ballas.
TMZ has learned ... the "Dancing with the Stars" pros -- who also happen to be BFFAEs -- just went halfsies on a quaint little place in the San Fernando Valley.
Official documents show ... the best buds each threw in on the $1.275 mil home ... which comes equipped with a massive closet, fabulous kitchen and a spa bath that could easily fit two.
The master bathroom even contains his and his sinks.
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