My girlfriend is normal, my mother is deaf, my father is healthy, my girlfriend and sister are healthy, and so am I. Will our descendants inherit it?

Well, obviously it won't affect your next generation.

The deaf-mute does not carry the dominant gene.

It doesn't show up in your girlfriend.

You are healthy again.

You're both explicit and implicit and you won't come out to make trouble ~ ~ ~

Well, we will have a healthy baby. ...