You have no risk of anything. Kissing only transmits herpes type 1, and you may have that already (your wife may too), and kissing/sucking breasts is not a risk for anything.
If the escort had ulcers ON her lips - like cold sores - then your chances of getting hsv1 from the escort are dramatically increased (if you don't have it already). I'm not sure if you meant your gums were bleeding and you had mouth ulcers or the escort did.)
If the escort had no sores, then I wouldn't worry at all. Don't play the "what if" game and think you wouldn't have noticed if she did - you would have. And since this is obviously causing you anxiety, perhaps not do this again.