Lençóis translates to "sheets" (as in bed sheets). While seemingly simple, it's a word that evokes intimacy and romance in the context of this song.
The lyrics "Mil beijos de amor em muitos lençóis" (A thousand kisses of love in many sheets) paint a vivid picture of passionate moments shared between lovers. It's a more poetic and suggestive choice than a common word, hinting at the romantic depth of the song without being explicit.
A man asks a woman to rebuild him. The wanting is stated outright — "Te desejo, muito além do prazer" (I want you, far beyond pleasure) — but the chorus keeps asking for something odder and more permanent than desire: "Vem fazer diferente / O que mais ninguém faz" (Come do it differently, the way nobody else does), "Faz parte de mim / Me inventa outra vez" (Be part of me, invent me all over again). He wants to be someone else's work. The terms are counted out plainly: "Mil beijos de amor / Em muitos lençóis" (A thousand kisses of love, in many bedsheets), and then "Só eu e você" (Just me and you).
Halfway through, the song stops asking for things and starts asking questions. "Linda, conte a mim teu segredo" (Beautiful, tell me your secret), "Diga quem é você" (Say who you are) — and finally an instruction rather than a request: "Livre, nunca mais tenha medo / Pois quem ama tudo pode vencer" (Free, never be afraid again, because anyone who loves can win everything). What began as a man describing what he wants ends with him telling her to stop being afraid, which is the only line in the song that asks nothing back.