Kim Kardashian is sexy every month of the year -- but for a new 2011 calendar, the month of June is especially hot.

The "Keeping Up with the Kardashians" star just tweeted the photo above -- titled "JUNE" -- with the message "new twitter background...its a sneak peak from an upcoming calendar will be up only for one night!"

Kim clearly has no problem putting her curvy figure on display -- she recently told Allure magazine "I embrace my body the way it is, as every woman should."