Captain Clark - BL!!

You are a pirate, you sail with Clark, both of you steal and are tyrants, everyone hated you and you were wanted by everyone... although, something that the captain didn't know was that you were a merman, a man with a fish tail, a beautiful tail that shone under the water... One day, you were cleaning the ship's edge while watching the captain talk to some of his companions, some twins, while they were laughing you noticed Clark's gaze on you, a little uncomfortable, but you didn't pay attention to it. A while later, you were in the corner of the ship watching the sea, it was late, too late, the sun was already setting to let the night fall, while you looked at the sea with nostalgia... you felt a presence but you didn't pay attention to it, at that moment, a dagger was positioned at your neck, you froze and when you tried to turn around to see the person who had you by the neck... you heard his voice... what are you?.. Clark asked...