How to get a toddler to unlatch?

[tiredpooky]

Hello, I know with babies they teach you to stick your finger under lip and loosen suction but since she had teeth i thought she would have to come off and relax her jaw too so what has worked well is me saying 'off' forcibly. Until now and she has learnt she doesnt have to do what i say.
I have tried to unlatch her the old way but she still seems to have suction from her jaw if that makes sense. Had to get her off for postie this am and could only do so by screaming as if she hurt me.
Also naughty badger has started to slide her teeth off the nipple with suction still. I tell her to come off nicely but not sure she understands.
thanks for advice.

I struggle too. I think I somehow force her teeth apart with my finger! Thought it was just me. Hope we get some tips!

I force a finger into the corner of his mouth to break the seal. He does occasionally bite in protest, but it's not as bad as when he bites for fun and giggles whilst doing it

distracting him by tickling often makes him unlatch too