Desconcerto comes from the verb desconcertar, meaning to disconcert, fluster, or throw off balance. It's a less common word than simple verbs like 'confundir' (to confuse), making it more interesting and memorable.
In the song, the singer uses it to describe how she feels when her love interest approaches: "Quando você chega perto, eu me desconcerto" (When you come close, I get flustered). It perfectly captures the feeling of being so captivated that you lose your composure, adding a touch of vulnerability and intense emotion to the lyrics.
"Quero Você do Jeito Que Quiser" is a sertanejo duet between Marília Mendonça and the sister duo Maiara & Maraisa, built around the tension between secrecy and desire.
The singer admits she would deny everything if anyone asked - she would pretend, refuse to confirm the relationship even under pressure - because she cannot control how she reacts when the person she loves is near. Just being close to them undoes her composure.
The chorus turns that secrecy into a kind of vow: she wants this person however they want to have her, even if it means staying hidden. She never planned to fall for them and never fought it - the attraction simply took over, and keeping the affair quiet becomes part of what makes it feel urgent and alive.