"Please keep doing what you're doing!" Although that's not what I'm saying, that's definitely what I'm thinking! And if my mouth is full at the time, I'm probably not saying much of anything.
I was taking my wife to pound town after about a month of dating. I could tell she was enjoying herself because she kept trying to verbalise but the words just came out as dribble. When she finally managed to string a few recognisable words together it was ah, uh, ah, ooh ah, oma oma God , O, oooh , I,I . Love you. . She immediately realised what she said and turned beet red. I never let her forget it.
I'm more of a quiet moaner and heavy breather naturally. But when I'm alone it's a different story... I usually blurt out something to intense and crazy depending on what I'm imagining or reading... things I could never say without embarrassment to a partner!