I know this is niche but over on Trillian I have had this kind of duel with two other mothers, twice with one, four times with another and the competition was very... enjoyable :-*
Basically myself vs you, both with a breast pump & a set time limit.
We trash talk or roleplay the duration and at the end we send eachother a photo of the bottle to see who managed to produce more milk.
A real contest over who's materially stronger.
If any other mother are interested you know where to find my trillian. ;)
I'm not always active because family commitments :-\ but I always welcome a challenge.
Oh and if others have had similar experiences let me know in the replies.
I'm undefeated on trillian so far, but if any one tried this irl I would love to hear more. :)
Wife had a hands off titfight with a lactating friend once. Managed to make her leak before ultimately being flattened by the friends bigger tits
I'd love to see if those milkers are able to withstand my tools on my page, maybe after you wouldn't consider yourself a part of the 'feminine hierarchy' contact me on trillian