I swallow. I used to not like the taste...and the cock was in the back of my throat, and it seemed stupid since I didn't care for the taste, to spit it out...your tastebuds are all in the front of your mouth...if you just swallow as he's cumming, you never taste it.
I think I'm used to it now however...I MUST say tho...for some reason, I like the taste of a smokers cum better than a nonsmokers...Weird.