Ladies tell me more about this sex position...

[OlderGuy]

My wife isn't one to talk about sex, inclusive of talking about penis size or various sex positions, etc. That's why I'm here...

Maybe this is the issue you should be working on. You've had some good responses; now go try it and ask your wife if she feels similar feelings or something else. As Hickboy said, communication is a key. You're not psychic.