sex 'have sex with'

[Arnold M. Zwicky]

Instinct magazine, Dec. 2004, p. 42, Frank Pizzoli's "What a Difference
a Gay Makes":
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A new Chicago Department of Public Health report shows about 14 percent
of primary and secondary syphilis cases reported there between 2000 and
2002 were transmitted through oral sex...
        Roughly 20 percent of men sexing other men and catching syphilis
indicated only oral sex exposure.
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