Invisible Pull (слэш)

The sharp tug in his chest woke John with a start. There was a red string. A red string that started somewhere around the area of his heart and led away from him... or rather towards someone else.
 
John has never expected to find his soulmate, but he is eager to meet them when the chance presents itself. Only, he isn't prepared for the revelation that awaits him at the other end of his soul string.