A good book to read about such things is called "Blow Him Away." It has a lot of info about bj's in general, positions, and techniques. There is a small section dedicated to deep throating. As for products, www.pureromance.com offers something called Great Head that might help. I've never used it so you'll have to tell me how it works if you decide to go for it.

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"...but his evaluation of my vampiric reputation had me begging for salvation ALL night long!"

My Stories and Poems
Wake Up, My Darling With Him Black The Incubus The Succubus Return of the Succubus Be My Dom The Vampiress The Seductress Condolances, My Vampire and Romance of the Virgin Master...or Pet? Part I Master....Or Pet? Part II Master...Or Pet? Part III (End of the Trilogy) When She Comes An Experiment In Her Blood The "Horseshoe" William and Camilla Cold Water Sit His First... Her Hunger You May Enter (Me) The Glory of Magdalena The Drive Home Dreaming of a Stranger Night
Just Like That The Taste The Pool of Pleasure Room 207 Park and Ride Til Death An Invitation Movie Night Sister's Shower


My Other Personalities
Blood Princess
Crown of Ivy