Aww, Marvin and Arlene, ang sweet ng names ninyo! For a boy, a few of us moms love pairing parent names kaya maybe "Arvin" (combo of both!) or classic "Martin" or "Adrian" if gusto ninyo something that flows well sa Filipino and international setup. For a girl, "Marlene" is literally a blend of both your names and sobrang ganda, or "Arlene Jr." if sentimental kayo, or go with "Marina" or "Adrienne" if gusto something fresh pero still connected sa family vibe.