Portales literally means "doorways" or "portals." It's an interesting word because it can refer to physical entrances, but also carries a more mystical or metaphorical sense of gateways to other places or experiences.
In the song, Dani Martín sings about "escondernos en portales" (hiding in doorways). This evokes a romantic image of young lovers finding secret, intimate spaces in public areas, adding a touch of playful rebellion and nostalgia to their passionate encounters.
Dani Martin's "Portales" is a love song built on stolen moments and unfinished conversations. He opens wanting to steal kisses and undress his lover right where they stand — "Robarte los besos" ["Steal your kisses"] — comparing the two of them to John Lennon and Yoko Ono while "Let It Be" plays, and wishing time would simply stop so nothing between them has to end.
The chorus turns the relationship into something both messy and eternal: weeks of silence followed by explosive reconciliation — "Follando como animales" ["F*cking like animals"] — and countless afternoons "De escondernos en portales" ["Of hiding in doorways"]. Those doorways give the song its title: portals the couple keep disappearing into together, fighting, forgiving, and starting over with no ending in sight.