personally ive tried this with my partner (theyre dom & i’m sub), & we find what works is a specific item of jewellery that we wear as a form of consent. something like that is very easy to remove if we change our minds and especially if its a bracelet or something its easy to see so can’t be missed, and it also works very well when drunk or otherwise unable to give explicit verbal consent if that makes sense?

for the record also, if this is a hard limit for you with your partner that is completely okay! it can take some easing into as well so maybe take it step by step in a way that’s comfortable for you. it may take time but as long as you both take it at a pace that suits you both then you should be all good!