6+ Billion coupled with blow job....
Let's say, for fun, that there are just over 3.3 billion males. Probably 10% of these are age 10-under and let's guess that 5% are too old or are unable to participate for various reasons. This would leave us with approx. 2.8 billion males, the overwhelming majority of which would LOVE getting a blow job at almost any time. Even when you factor in the uncountable reasons why most of these are not getting blown at any particular moment, that's a lot of candidates who are trying to put themselves in a position for this to happen.

Let's choose a low number, say 1%, who are successful each day. That's 28 million lucky/smart/forceful guys a day, or 1,167,000 per hour. Now, that would further divide into 19,450 per minute, but if we say that the average BJ only lasts 5 minutes, then we'd have almost 100,000 BJs happening at any given time.