You can always ask in advance, making it nonchalant :) "1 kiss, right?", that at least will be a nice ice-breaker that will minimize awkwardness
Really? That's your minimal solution for awkwardness?
Ice-breakers should be fun or interesting conversation starters, they shouldn't be you calling attention to how awkward you are. Just learn follow the other person's cues. If you must do it, the excessive-honesty-in-order-to-elicit-sympathy tactic can be saved as a back up plan for when you make mistakes.