The words bareback and safe are contradictory to one another. If you want to bareback, then you have to accept that you could possibly catch a sexually transmitted disease. If you're not willing to accept that, then you need to wear a condom and he needs to wear one as well. With that said, there are ways to reduce the risk:
-You can have him take an Oraquick test beforehand to screen for HIV. -Topping has less risk of catch an STD vs bottoming. -If you're cut, you're less likely to catch an STD vs if you're uncut and you're foreskin is intact. -Make sure to use lube. Some guys just like to spit or go in dry, but that's far more likely to result in bleeding of some kind. -Don't brush your teeth at least 6 hours prior to engaging in oral sex. If you want to freshen your breath, use a mint or a piece of gum instead. -If you have an anal plug at home, work on inserting that in your ass today. If you're ass is more open upped, you're less likely to bleed as a result of being anally penetrated. -Rimming helps to make a person more receptive to anal penetration vs just sticking it in there. Suggestions on how to properly bareback? -Make sure you have properly cleaned out your ass with an anal douche. -Make sure everything is properly clean. -If you're going to flip flop, each partner should be allowed to cum in the other. The whole point of bareback is either you want to put your cum in your partner or vice versa - your partner wants your cum. -Rimming and lube, makes anal less painful. -Personally, I perfer to use poppers when bottoming. It helps to relax your anal muscles. If topping, you want to hit them right before cumming.