Which neatly comes back to a post I put up under the 'punting with bandages' thread, that frankly seeing any WG is opening a door to a lot more than just buying some sex....
"The whole hygiene thing can get diluted down the hierarchy of issues when one is in the mood, but do you really want your cock sucked by a WG that's sucked several that day already and possibly had a load from some of them, unless you know she uses good mouthwash gargle in between and cleans her other bits properly. Equally do you want to give RO to a pussy that has had an unwashed mouth on it a few minutes before you got there, you might be licking that last guy's spunk off her tummy/ nipples/ face......... Use a good mouthwash yourself, and either wash there or if the facilities turn out to be not very clean, then have a bottle of that hand steriliser (and the mouthwash) in the car. Never have anything put into you that hasn't got a condom on it. I expect chaps who do this activity quite a bit will all have had more than average colds, throat/ ENT infections, Tonsillitis, UTI's and so on, safe practices will help to keep these to a minimum. ... But seeing a WG of course raises the risk.....