>>1760
>rotating brushes on nipples
nipple tickling is my favorite. Lactation is my favorite too, but you'd be surprised to know that nipple stimulation can usually make lactating breasts start pushing milk out on their own, not all breasts may respond to that but most do, so if you reach down there and tickle or massage their nipples, maybe just for a few minutes, your hand will get wet soon when you trigger the letdown reflex (that biological thing that helps nursing moms, by pushing their milk out in response to stimulation)
I know this is a tickling board and not a "tickling for milk" board, but you should search PornHub for "nipple stimulation letdown", you'll see some girls rubbing their nipples to make their lactating breasts leak or even spray milk. And take it from me, the more fun types of nipple tickling can trigger their letdown more effectively than doing it with their hands. I've seen (and tipped) girls using vibrators and toothbrushes on their nipples and, if their breasts were already prone to pushing out a lot of milk on their own, that kind of stimulation is really effective at making them spray fountains of milk.
