Triads are very hard to create and maintain. Being with 2 women at once is the most common fantasy for men, but in reality, outside of a few casual sexual encounters, a fully equal triad where all 3 people are equally attracted to and long-term compatible are so rare as to be almost non-existent.
Much much more common is a V, where you would be the hinge, and 2 women would be the legs of the V. They may or may not be friends. They might not want to meet. It would be up to you to coordinate dates with each separately, or friendly get-togethers, if the women would enjoy that. You would need to keep things balanced and fair, keep both women satisfied emotionally and sexually. You would get to deal with 2 cases of PMS, two lovers with their life issues, job issues, families, maybe their kids, pets, their home repairs, etc., etc. Do you have it in you to deal with that? It's not all sex and giggles and candlelit dinners. Polyamory is real life. It's just way more complicated than monogamy.
Also, you would need to dig deeply into yourself and see how you would feel if one or both of your hypothetical lovers might want another lover (or more) for herself besides you. She may want to date other women, or.... men! It's not fair for you to decree a one penis policy.