What Is...

the often milky white fluid that is discharged from a man's penis, after ejaculation. Most claim it has a salty sweet taste combination.

There are a ton of slang words used to describe semen. Cum is one of them, so is jizz, man cream, and a host of others.

If you clicked on a word that brought you here, well now you know it is just another term for CUM (SEMEN)

Further details at Gaydemon DicKtionary

Do you get off and watching guys Cum?

Blake Mason is one of those membership sites that takes pride in how it shows the important stuff, like cocks and cum. They want to make sure that members get to see all the glorious details of those uncut dicks, and that precious fluid. One of the reasons Blake Mason is now producing in High Definition Video.  So you can see the CUM better.