Forjábamos comes from the verb forjar, which means 'to forge' or 'to shape'. It's a strong, evocative word that suggests creation and effort, often associated with metalwork or building something substantial.
In the context of
"Primer Beso" (First Kiss) is Raymix's electrocumbia celebration of a first kiss and the rush of falling in love.
The singer is pure joy, wanting to shout and sing from the excitement. He remembers how sweet his partner's lips were and the look in her eyes right before it happened, then the moment itself: their first kiss.
The song ends on a slower, romantic note, picturing the two of them close together under the moon as witness, the warmth of that kiss carrying them away.