Being curved or bending to one side is pretty common. Don't worry about it, and treat it as an asset. Mine is shaped like a "Z" though. I call him "Zed". Heh. (I'm kidding.)
So you should use a position where Mr. Happy touches the woman's G-spot. She will go wild for it.
I have a long time interest in psychology, specializing in relationship dynamics for 30 years.
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