|Kiss of Death|
Kill beings through a kiss by burning or boiling them
The Siren killed men by passionately kissing them on the lips, while burning their lungs from the inside. The Siren first showed this power when she killed Melissa's husband in front of her.
She then lured Leo with her suductive song and kissed him, but it merely incapacitated him since he was a Whitelighter. The Siren later tried to kill Cole by kissing him, but due to the massive demonic powers he absorbed, it only stirred up the evil growing in him and made him nearly kill Phoebe.