In high school, a girl stopped about 30 seconds into blowing me and said "you sure as shit better not cum in my mouth", then continued. No ambiguity from her.
I just tell her when I'm gonna cum, if she doesn't want it in her mouth, then I assume she'll pull it out and let me cum on her face, tits where ever.
I'm submissive and I enjoy swallowing. You want me to swallow, all you have to do is pull your cock out of my mouth, tell me to put my head back and open my mouth wide, firmly hold my head with one hand while stroking your cock with the other hand and cum into my mouth. When you're done cumming, tell me to swallow. I will eagerly and enthusiastically swallow, then lick and suck your cock squeaky clean. It's that easy. Try it with your own wife or girlfriend sometime. Maybe she'll enjoy it as much as I do. You never know.
I just go for it. It's up to her how she takes it when I blast off. Once I am at the point of cumming, I don't care where it goes, although I have to admit, I like it when my gal swallows. There is just something so deliciously naughty about it. I've written about an ex girlfriend who gave the most amazing BJs and who swallowed every time. I still see her around occasionally -- as a friend -- and when I do, I often get a visual of the look on her face after I pumped a huge load into her amazingly talented mouth. Priceless memories......
I don't really ask...I usually at least give my partner a warning of a imminent orgasm and let her decide if she wants to swallow...
I usually tell her, but she knows it's coming by my expression. If I definitely want to come in her mouth, I discuss that desire ahead of time. Sometimes, when I know I have a big load, I pull out and shoot it on her breasts.
I definitely prefer him to warn me. He doesn't have to ask, but say "I'm close", or make it really obvious or something. Sometimes I'm OK with it, sometimes I'm not, and I prefer to have that option. Depends...Sometimes It's ok, Sometimes it tastes kind of gross. Either way, I wouldn't usually say I like the taste of it. I've had it before where it made me gag...just depends on what they ate I guess.... I try to swallow before thinking about it. I agree with this: It is hot, and I wouldn't expect a warning in this case. My current boyfriend isn't very dominant, though, so this hasn't happened in a long time.