Klaus morphed without warning into his wolf form, a menacing wolf that looked dangerous and deadly. His instincts chanted for him to kill, hunt, consume and yet, the logical part of his mind told him not to hurt Elena. He gently bit into Elena's hand, thus infecting her with the werewolf venom that would run through her body when he turned her.
Shifting back into his masculine form, he smirked down at her. "See love? not so bad."