Daphne Greengrass's big secret was that she could talk to dogs. It was looked down upon in slytherin to have such a ... hufflepuffy trait. So she hid it well. Until a certain dog in hogsMeade claimed to be a cursed wizard.
The catch? To free him she had to steal a certain green eyed boy first kiss.
3 days later.
"Sirius, you told her she had to what??"
"You're welcome harry". He said grinning.