Not necessarily, i have a very buff friend and it happens to him all the time, especially when we go to the pub

It’s really not uncommon, women can ignore your bounderies too and when they do they are usually especially overt about it because they often don’t realize they are doing anything wrong. A lot of my friends are body builders and it 100% happens. Every single one of them has been touched without their consent

Exact same thing happened to me. Only there was no HR to do nothing.