Only in official Pathfinder Society game play I mean. In this RP, aside from maybe birth complications depending on who the mother is, I'm almost fairly certain all races and breed with each other as long as they have the required organs to do so. So Irish if you really do want to make that half-orc/half-elf here, go right ahead. Cause you know, you hang out here a lot already, might as well make you do something about it.