Ck In 2U Heat Perfume by Calvin Klein was released in 2009. Spark intrigue and more than a little frenzy with Ck In 2U Heat, a sultry cocktail of exotic fruits and florals that adds a little extra spark to those long summer nights. Dewy and fresh, this versatile scent relies on unexpected tropical notes to encompass the raw spontaneity of the uninhibited Calvin Klein woman. Juicy blood orange, with its tantalizing hints of raspberry, dominates the top notes. At the middle, a surprising mixture of orchid, ginger andexotic frangipani reign sweet and alluring. The casual ease of sandalwood and creamy musk balance peppery cedar to form lingering base notes.