How are some of the ways have people randomly asks if they can touch your baby bump , and what did you say ?

So I keep getting asked so many times by the same coworkers and random strangers if they can touch my bump , I personally don't mind if they was a friend or family but most of the people I honestly don't know them and tell them no and explain I don't like being touched and I'll walk off but not even 10 mins it seems they come back and ask again and I'm to the point of saying things that can make a sailor blush cuase if it's no in 10 mins or so it still will be no even if it's a friend I'll say no but they leave it as such till I look less tired or wait a while befor asking again like a few days or so but since I'm closer to having my little one my friends might ask daily or just leave it as if I already said no but I have told them if they want to touch they can but as long as they ask incase of a stranger see them just go and touch so they dont think they can try and touch with out asking . I don't understand why people ask to touch baby bumps inless they know the person, I had a friend a few years ago where she just grab my hand and said feel his moving and outside of her he moved for me but other then possibly feeling movement what may not happen I don't get it but that might be just me due to being neurodivergent