HIV
He Inserts Vaginally.
This is a common trait of reproduction that the hip kids have abbreviated as not to let their square parents know what they are doing with the babysitter and/or "biology lab partner"
Billions of dollars have been put into fighting it, but teenagers will be teenagers, and soon they too will have teenagers and the vicious cycle continues. Soon grandma's will be an average age of 14, at the rate things are going.
But don't despair! For a small one time payment every month of $19.95 you can prevent the spread of HIV with a condom that ONLY WE can provide. Orders will be shipped on the first Friday of the month, each month, provided you've made your last payment. Product will arrive in a plain unmarked envelope delivered by Pony Express.