How do I ask my boyfriend to pay for a brazilian wax he wants me to get?

It is to my understanding that Brazilian waxes are expensive and painful. I'm broke. How do I ask him to pay for it?

PS: He's the one who wants me to get one done for a special occasion.
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+1 y
He paid for it, but then asked me to give him $20 because he was tight on money. What do you think?
How do I ask my boyfriend to pay for a brazilian wax he wants me to get?
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