Depends on amount, consistency, and taste. It can depend how much of him you have in your mouth and if you can feel him swell just before that first shot of cum blasts into your mouth. Or just oozes in. A little or a lot; salty, sweet and it can be thick or thin/watery. There's some subliminal stuff going on, I think; I know the moment I feel his prick swell I think, "Here it comes..." and then my mind and body just goes, "Ahh..." and I don't have any words for how the subliminal stuff feels but I know what it feels like. It's... satisfying. You don't feel right if he doesn't cum in your mouth.
Swelling first (with most guys) then the pulsations of ejaculation but this, too, can vary with guys. I've had guys surprise me with cum and I never felt them grow in my mouth or pumping their load... but I'd been too busy swallowing to really make a big deal out of it. Just filed the information under "We're all the same but not really."
It's hard to explain how it feels but when he is ready to cum his cock swells, his moaning can get much louder and the gush of his fluid hits the inside of my mouth as I continue to slowly such his cock then a second gush spurts as I swallow what he's provided and continue sucking to enjoy every spurt of cum he's able to provide. Then you feel his cock begin to soften in your mouth as I milk his cock for any remanence of cum left behind as his body goes into a total relaxed state. What I feel most when a man cums in my mouth is a sense of pride knowing my mouth was able to satisfy his cock to the point of releasing his load into my mouth to savor, taste, and swallow. I'm as equally satisfied as he is as I can still taste his cum for close to an hour afterwards.
I suppose for me it’s the exhilaration of making him cum. All the sensations of him tensing up and his cock twitching or spasming as he cums are gratifying. Sometimes it’s a flood of cum that shoots several times other times it’s a small oozing. There is a talent to keeping him in that pinnacle of pleasure without overdoing it. You want to extend his orgasm without giving him too much stimulation to the point he can’t bare it. Sometimes he will shoot some more from this. You need to be able to read how he is responding and adjust according to his response. With some guys you can continue to stroke his shaft and lightly suck him into another round. Think of cum as liquid pleasure, the more you can get out of him the more pleasurable it is, for both of you.
I know that sometimes I swallow as he spurts and sometimes, I hold it in my mouth until he's done then swallow it. It all depends on how I'm feeling in that precise moment...
Usually yes, I swallow each spurt as I keep sucking on his cock. Some guys I've been with have preferred to watch they're cum entering my open mouth as the head of their cock is laying against my tongue so then I don't swallow until he's released all he has. Heavy cummers for me are best done this way to ensure I've swallowed it all.
Warm...almost hot. As mentioned, it depends on the size of his load. I've only sucked a few times to completion but the first one was a long release compared to the others. I just kept swallowing and it seemed like his spasms went on for a long time before the head got too sensitive to leave his cock in my my mouth. We're all different.
Wonderful. There's the physical sensations of his cock in my mouth, the changes in his breathing; feeling his body tense under my fingertips, then suddenly the taste of his semen; the distilled essence of his life force, pervades my whole being. I love having someone cum in my mouth.