If something is seductive, it makes you want it, even if you know you shouldn't have it.
The word seductive can make people think of attraction, desire, and sometimes danger.
Examples:
The chocolate cake looks very seductive.
The music was so seductive, I couldn't stop dancing.
She used a seductive smile to get what she wanted.
The cat gave me a seductive look, but I didn't give it any more food.
The treasure was hidden in a seductive cave, but I knew it was too dangerous to go inside.
The magician's tricks were so seductive, everyone wanted to see more.