Often times I'll discuss with my partner what I need if I start stuttering out in the wild, lol. If I start to stutter I like it when someone finishes it for me instead of me serving a vowel salad. However in my private life, when there isn't that sense of urgency and I'm having less anxiety, I like being given the time. I think it all just depends. Definitely ask, I'm sure he'll be appreciative of your support.