Getting back to the topic....Because I have tasted come before many years ago, I think nothing of it. Every now and then when my wife and I are really hot and going at it, I'll fuck her until I can feel a nut begin to build in my balls.
Ever so slowly I'll continue fucking and stopping, building up that nut. Then at the right moment, I'll pull my cock out so that only the head is still in her pussy and I'll begin to contract on my prostate, pushing out a few hard streams of come. Call it an orgasm, but it's not 100% !
I'll do this only a couple times at best. Then I begin to lick her hot pussy while my come is running out. The mix of her juices and my come is undescribable. This is mostly pre-come, and a lot of it. It's very liquidy and has a sweet taste to it.
The difference is, normal ejaculate is somewhat thick and chunky with a bitter/sweet taste. Pre-come is smooth and velvety and sweeter.
My wifes orgasm is unbelievable at this point, and I also get to blow my load, again ! All while the taste of my own come is in my mouth. It's not gross at all, but you have to be "hot" and in the mood !