Former Buffy star Charisma Carpenter showed off her buff bikini body on Twitter. Credit: Courtesy Charisma Carpenter; Paul A. Hebert/Getty Images

Could it be witchcraft? Former Buffy star Charisma Carpenter showed off her amazingly fit bikini body in a photo she posted to her Twitter on Sunday, Aug. 11 -- and the actress had good reason to flaunt.

Carpenter, now 43, hashtagged the cell phone-taken "selfie" with the phrases "work hard," "earn it," and own it," bragging about her effective workout regime. In the racy photos, the actress wears a teeny tiny zebra-print bikini that barely covers her chest.

Earlier this month, the fit actress -- who also starred on Buffy spinoff Angel -- opened up to about her fitness routine, calling circuit training her favorite workout, and sharing her dieting tips.

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"Eat as much protein as possible to ward off cravings," she told the site, though she copped to occasionally indulging in "chocolate and salt and pepper potato chips."

This isn't the first time Carpenter has shared snapshots of her beach-ready bikini body, however. In June, the actress snapped a shot of herself lifting her shirt to reveal washboard abs.

"#werk #bikini ready," she captioned the photo.