Don’t put yourself through the emotional stress of these things, I know it’s really hard to be up front and tell them what to do or not to do but once you’ve done it a few times you won’t care, especially when it comes to hygiene or if it hurts. I HATE my clit being sucked it’s the worst sensation ever and if anyone ever does it I tell them oh please don’t do that I like to be licked gently. I once had to tell a guy to go wash his dick 3 times in an hour appointment and it still smelt

so I refused to see him after, my hand and sheet were riddled with the smell of piss, not cool!!
It can be awkward though, I still have one guy that goes down on me, does it slow for a minute then really fast head moving left to right like he’s not eaten a meal in a week, does that for a minute then back and forth to slow and fast in minute intervals. I find it so unsexy but I dont have the heart to tell him!