Oh let's see some mixed babies on the show....I think half human half alien characters would be cool. We already have a Casti and a human getting married and Iraths and humans getting on.
Your Challenger won't drive? You're probably in the passenger seat.
Can't sell/delete an item? Check all of your loadouts, it's likely still equipped.
Auction house? Why? It'll just render bits purchased lock boxes pointless, and weapons are mostly equal anyway.
Gear/enemy progression? No thanks, it'll only render 90% of the content trivial when you reach the highest zone.
Actually, I don't think it's possible. I think they discussed this specifically at some point, that the species were not compatible for cross breeding, and that Amanda's comment about Irissa looking pureblood was more about being confused by Nolan's comment (about Irissa being his daughter) and not a statement meant to imply that halfbreeds actually exist.
Which seemed like kind of a weak excuse to me, but there it is.
This is mostly how I feel. It's pretty clear Tommy's in it for real reasons like finding true love and Irisa is pretty damaged. She's obviously an emotional mess and can't deal at all with her feelings in a normal way. I really look forward to seeing when Tommy finally puts his foot down for a real discussion and also when Nolan finds out about it.