It's hard to quantify the difference. I guess oral is more acute...more intense. Personally, If I had to choose, I would tend to lean a bit more toward intercourse. While the feeling is not as intense as a bj, it's no less desireable. And, there's this feeling of warm, moistness, and (dare I say) comfort along the entire length of my penis that I experience with intercourse. Plus, the knowledge that I'm inside my loved one and we are joined as one is just mind-blowing (no pun intended).

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Nubian