Adueñaba comes from the verb adueñarse, which means 'to take possession of' or 'to make something one's own'. It's a less common verb than simply 'tener' (to have) and carries a stronger sense of claiming or seizing.
In the song, the lyric "Donde fue la primera vez que de ti me adueñaba" translates to "Where it was the first time I took possession of you." It's used in a romantic and intimate context, implying a moment of deep connection and claiming someone as your own, making it a very evocative and memorable word.
"Soy Y Seré" ("I Am and I Will Be") is a sensual reggaeton track by the Puerto Rican duo Plan B, made up of Chencho and Maldy.
The lyrics are a bold, unapologetic declaration of physical desire. The singer describes being completely consumed by attraction to someone, promising to be whatever they need in the bedroom, and paints the encounter in vivid, romantic-but-explicit imagery: a beach at night, the moon and stars as witnesses, time itself seeming to stop.
It is a classic example of mid-2000s Latin perreo: more about raw physical passion than deep romance, built for the dance floor as much as the bedroom.