How do I get a girl to suck on my balls until I scream?

How do I get a girl to suck on my balls until I scream?
Place your nuts in her mouth (and in between her teeth) and punch her in the stomach! This will create tremendous suction… Yes, this will also make you scream…
Actually, instead of resorting to violence: have you tried a vacuum cleaner? You don’t have to buy it dinner!
- Dog
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