"It feels so liberating because my whole career, I have been this sweet, funny, sexy girl that just shakes ass and talks about sexuality," Tokischa tells NPR. Christopher Polk/Billboard via Getty Images/Billboard hide caption toggle caption Christopher Polk/Billboard via Getty Images/Billboard The Dominican singer Tokischa built her career through a series of transgressions: mostly rapping, nay, wailing about her insatiable sex drive with a level of raunchiness that could make even the most liberated listener raise an eyebrow. Although she's exactly the kind of woman reggaetoneros have been waxing poetic about for three decades, Toki's willingness to put words (and moans) to the dirtiest thoughts that cross her mind — not to mention equally racy videos and performances, like when she's gotten down on all fours to drink water from a dog bowl onstage — has often made her a controversial figure in Latin music.…