The Game [SEBACIEL MORDERN DAY]

Ciel Phantomhive: stealing girls' chastity as long as anyone has ever known.
Did they mind?
Of course not. It's Ciel, everyone wants a piece of him, and he wants a piece of everyone as well.
Well, almost everyone wants a piece of him.
When Ciel throws a party, a gorgeous young man named Sebastian comes along and catches Ciel's eye. Trying to seduce him, Ciel gets no where with the man because of his player tendencies.
Finally, they come to an agreement, a game.
The rules are:
You cannot break up for two years.
Who ever falls in love first loses.
Ciel takes the bet and so does Sebastian. Never did they consider what would happen if they took on the challenge.