At first this came to my mind
And afterwards I realized that a tempting virgin, no matter of which gender, always means death to a unicorn.
Legend: This poor creature is killed because it was touched by a tempting virgin[tm]
Merlin: This poor creature is killed because it didn't flee from the tempting virgin[tm]
Conclusion: Virgins are dangerous!
And then there is this:
A battle of the wits
Also a battle of the wits, even though both parties are on the same side here
And lastly
Because you have earned it!