You came to me with your girlfriend at your side, asking for assitance in effective communication. I knew immediately that I'd be able to help. It was clear from everything from your posture to the tension that hung between the two of you, unspoken, that what I had on my hands were two submissive personalities.
In my experience, these two personalities can remain happy and fulfilled forever if they focus on serving a superior alpha. In your case, your submission won't just be in terms of your relationship. You won't just be handing him the reigns (and your girlfriend's glorious body) on a silver platter.
Your holes, too, must be open for receiving his seed.