The seven CIMs I've had in my life have all been memorable, if only for their rarity. Outside of that, the one I most remember was by a visiting lady who was either from Oklahoma or Pensacola, or maybe both at various times in her life. She had this technique where her tongue was moving up and down, fairly slowly, along one side, while a wet finger was tracing an identical path on the other. I've never felt anything else quite like it.
I've seen a few porn techniques that also look intriguing but I can't say I've ever experienced. Kaylee Kennedy's bud AJ Estrada did this thing a few times where she managed to tongue a guy's balls while he was balls deep in her mouth. Another one I saw recently involved repeated long licks from the bottom of the scrotum to the tip. I need to go back and watch some Klixen vids.
