Friends Jokes - Speech Impediment

Over drinks one afternoon a buddy of mine and I were discussing former "loves"

I told him that I once broke-up with a girl long ago because she had a seemingly incurable speech impediment.

George said,
"Jimmy, I'm shocked. I never know you to be one to be prejudiced against handicaps. What was the girl's problem?"

Taking a sip, I paused and reflected.

"She couldn't say 'yes'."