An account owner must take the first RMD for the year in which he or she turns 70 ½. However, the first RMD payment can be delayed until April 1st of the year following the year in which he or she turns 70 ½. For all subsequent years, including the year in which the first RMD was paid by April 1st, the account owner must take the RMD by December 31st of the year.  If you wait to take your first RMD until the following year, you will still need to take another  RMD for the same year.  So you will have to take 2 RMD that year.

An IRA owner must calculate the RMD separately for each IRA that he or she owns, but can withdraw the total amount from one or more of the IRAs. Similarly, a 403(b) contract owner must calculate the RMD separately for each 403(b) contract that he or she owns, but can take the total amount from one or more of the 403(b) contracts.

However, RMDs required from other types of retirement plans, such as 401(k) and 457(b) plans have to be taken separately from each of those plan accounts.

See this IRS FAQ on RMDs….
http://www.irs.gov/Retirement-Plans/Retirement-Plans-FAQs-regarding-Required-Minimum-Distributions