Yelena/Natasha
You know all the words to American Pie in both English and Russian. The original version, not the shitty one by Madonna. You used to whine when you didn't get your way and Marina wouldn't make you mac and cheese for dinner. There is no way to whistle on here or I'd do that for you. If you want that, you have to meet me in person.
And about the kid. It's an alternate universe thing. In some other universe, I could have kids and apparently I had one with Steve but we died and another version of Tony Stark raised Thor's kid, James, and some more kids I don't know. So yes, a version of me is his mother but not me, me. Hard to pull that one off without a uterus.