NSFW - Serious sex discussion

I normally come across the idea whenever my girlfriend is within 10 feet of me. She just has this look that I find completely and utterly irresistible.

I do talk to my parents about sex. My dad loves to hear it, since it makes him proud that I'm knockin' boots. My mom... she gets this look on her face when the idea pops up that says "Oh my god, my baby just grew up before my very eyes... damn." My dad is usually pretty helpful when it comes to talking about it, because the way he works lets me know that I'm not doing something wrong. I'm not talking about wrong in a "YOU SINNER" sense, but in a general moral sense. My mom accepts it, but that's really it.

I generally allow my own experience to teach me. My friends usually spout elaborate tales of grandeur that make absolutely no sense, usually things like how to go down on a girl, and the like. I tried one thing my friend suggested, and it worked like a charm, but the next few things I heard failed miserably, and subsequently led me not to trust my friends sexual perspectives.

As for religion, I'm an atheist, and my girlfriend is a non-denominational Christian, but that doesn't stop us from going at it like wild rabbits. We figure that the Catholic doctrine of "If it feels good, stop" is a load of crap.

Jam it back in, in the dark.