Nice Rainbow is smirking.
In my headcannon., she is eager to be a mother. She reacts to baby kicks with giggling coz they tickle; showing she’s tougher. And instead of being concern if the baby’s a boy or girl, she’s more concern any baby might be a stillborn. And on each brith, she is zero ‘It’s a boy’ or ‘It’s a girl’, she’s ‘He/She’s alife’. And beats her chest and does the Tarzan call on primal joy. And the baby stops crying coz he/she knows the mother’s voice, and calms when she cuddles him/her to her heart and humbs. And she does a grand job with raising the babies such as teahcing them martial arts and to be a good pal. Awww.