“shocked both the rescuers and their huge balls could make it through”-———well, I don’t know why you had to make this sexual.
Yeah, funny but not. And prefer to leave that to private real-life conversations.
But even so, it always bugs me because it is very sexist and pointless. Overemphasis not just on maleness, but on what indicates strength.
Normally prior to our sex-obsessed age, one would say GUTS. And indeed, when you are scared - male or female - what goes haywire and feels bad is the guts, including puking or bowel clearing. Testes have no feeling for fear or boldness. The reference is irrelevant and leaves out women.