For what it's worth, I like to listen to LoveLine on the radio when driving home at night. Dr. Drew happened to mention tonight that the mouth is actually pretty hostile to the HIV virus - but the esophagus is not. So, spit, don't swallow, if you don't know your partner, but you love the old happy ending.
And then gargle with some Jack Daniels, I guess. Never had a TS cum in my mouth personally.