Awww... Dats a girly birdy!
You can dig down into the neck feathers behind the head and really scritch deep when she's like that... try it some time.. Mazzie LOVES it.
Eggs... well, I wouldnt worry too much. Maz isnt interested in eggs, as shes not interested in boys. I pet and scritch her madly but she's never laid a single one. Even my stimulation of her doesnt stimulate her to lay.
Boys do too like scritches

... its just on their own terms. Buddy wont flop his head down for them, but he'll lean his beak against my chest and jabber softly at me while I do it.
If she ever does lay an egg I'd be shocked. Honestly. I know a lot of Alexandrines who lay but its rare for the female IRN's to do it without being a mated bird.
Athena