When Blaise dares him to ask Harry Potter a multitude of ridiculous pick-up lines, Draco accepts without expecting much. Honestly, what are the odds that a few pick-up lines could capture the heart of the Boy Who Lived anyhow? 8th year.

It's a jinx that renders the victim mute, unless he/she serves the purpose of the jinx and kisses the person that they desire. It's just Harry's luck that he's in love with Draco. HPDM, oneshot, eighth year.