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Originally Posted by Kia

no, i know it sounds silly; but I thought the same rule applies like when kids are told not to suck their thumbs for a long period of time. I know I was told it creates an overbite. I shy away from oral sex most of the time because of this.

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Completely different situation. The thumb places too much force against the roof of the mouth (palate) causing a tenting effect-resulting in the teeth in the maxilla to protrude.
See this: Thumb sucking - Wikipedia, the free encyclopedia

Makes me wonder what is going to happen to my tongue with my penchant for cunnilingus?:confused: :p