I believe they call it sex spells not lust spells? I might be mistaken.
A sex spell works on the energy of the person by making them more excited sexually. We do this for married couple who want to add the pazaz back in their sex life.
Yes faiz786, you can cast this spell BUT if you're trying to manipulate someone to have sex with you (they are not your wife, girlfriend or remotely interested in you) then this would be considered black magic and I doubt any spell caster here would do it for you.
But if you're wanting it for your wife/girlfriend, then let me know. I will be happy to cast for you.