Sex - Do men feel like they have to pee just before ejaculating?

Nah, it's a completely different feeling. Just before orgasm the sperm is released into a small holding area, ready for ejaculation. I always think I can feel this happening but perhaps it's just because I know it's happening. Then for the orgasm itself, you often don't feel the movement of the ejaculate (however you can feel pee because it sort of vibrates/pulsates the penis a little as it flows, in the same way you can feel water moving through a garden hose).

I tend to want to pee after ejaculating because it sort of "clears the pipes". Also, if you don't clean up properly, your ejaculate can dry and bond your penis to your clothes and it's then slightly painful to separate them again. Perhaps that's just me, though. :)