I can certainly understand about your situation with Pedro, ny conure is the same way, she is the feisty of my two birds, Josey doesn't push it with Sunny but given half a chance Sunny will try to go for Josey so I keep them a safe distance apart.
You probably should provide a separate glass of water for them to drink out of for after you have sipped from yours there could be some of your saliva present and you don't want them to have that as it is full of bacteria that they can't handle. When I share some juice or water with my fids I allow them to drink some before I take the first sip.
I think you will find that your birds will love any kind of pasta, Josey does and especially spaghetti with the sauce.