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It's hard out there for a rap star trying to come out with the next big sexual euphemism. Armed only with weather patterns ("make it rain"), child-friendly sweets ("lick it like a lollipop") and whimsy ("superman that ho"), today's hip-hop stars struggle to coin a sex term as eternal as LL Cool J's ultimate rap [...]

It's hard not to think about sex when an R. Kelly jam comes on the radio. After all, Robert Sylvester Kelly is one of the foremost sex crooners of our time. But Kelly doesn't just toss around sexual euphemisms in his songs—he mixes them up in ways that are often misleading, confusing, and maybe—just maybe—transgressive. [...]