In the fifth installment of "Baby Martin's Initiation," two Filipino brothers, one older and one just barely legal, find themselves alone in their cramped apartment. The older brother, horny and frustrated, starts to masturbate, his thick cock hardening as he imagines the forbidden pleasures of his younger sibling. The baby brother, curious and turned on, watches from the doorway, his own cock stiffening in his pants. They lock eyes, and the older brother beckons him in, ready to introduce him to the world of gay sex.