Pablo Martinez is a pre-made adult Sim, who is stored in the family bin at the start of The Sims 3. His wife is Jennifer Martinez. Pablo is 1 day older than his wife, and is 18 days from becoming an elder when first played.
He and his wife seem to have a strong marriage, with two traits in common (Flirty and Loves the Outdoors) and a very high relationship with one another when first played. This may explain why the family bio refers to them as "love birds".