In front of me stands a woman, a grandmother no less, who has just placed a lubricated condom inside her cheek and then, with what can only be called profound skill, uses her mouth to apply that same condom to a bright red dildo.

There are 300-plus of us in the lecture theatre at the University of Ottawa watching Sue Johanson, better known as radio and TV celebrity Sex with Sue, do this trick.

There are giggles, applause, moans. We have been in this room for two hours watching Johanson perform and listening, laughing, and then silently pausing to think as she shares the straight goods about sex, and now this, her near finale of the night in response to a question: How can you look sexy putting a condom on your boyfriend?

The entire evening has left me stunned. Not at Sue and her antics, but simply at how much has - and then has not - changed in the 20 years since I last saw this former nurse-turned-sex educator perform in front of a live audience.

Like: "You can't get pregnant if it's your first time." Her "think about it" answer then and now? "Sperm have a head and a tail and a one-track mind. Do sperm care that it was your first time?"

First big one, obviously, is that straight-talking Sue became famous and is now a much sought-after radio and TV talk show host and guest in the U.S. and Canada.

Second, while she still lectures - to approximately 35,000 young people a year - the audiences are now university and college students and adults. She left the public school system a decade ago, the result of frustration with the mixed messages of school officials (tell it like it is and don't) and funding cuts.

She entertains me with some new myths. "The latest one is that ejaculate taken into your mouth will whiten your teeth," she says, laughing. "Right, that's why my teeth are as yellow as a duck's foot."

"Oral sex has become something females do to keep the boys happy," she says. " The same old story. If you don't do it, I'll find somebody who does."

"What we're seeing is young females, certainly at a younger age, engaging in drug use or risky behaviours, or what I would call premature sexual engagement," says Louise Logue, co-ordinator of the Ottawa police youth intervention and diversion unit. "The average age of the young person I would deal with back in 1977 might be 15 to 17. Today, the average age would be anywhere from 10 to 14," she says.

But not everyone is raising alarm. Alex McKay, one of Canada's premier researchers on teens and sex, says the latest statistics and the long-term trends leave him "quite optimistic about issues of adolescent sexual health and where we're going ... in terms of individual sexual health."

He notes the recently released Statistics Canada data on sexual intercourse and teens, which showed 12% of girls and 13% of boys have had intercourse by age 16. McKay says the new numbers were not as high as he thought they might be.

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