Texas Citrus Guacamole

1. Peel and section grapefruit, reserving 2 tablespoons of juice.
2. Measure 1 cup sections; cut into bite-sized pieces and set aside.
3. Peel avocado; mash with a fork until somewhat smooth, leaving some small chunks.
4. Add the remaining ingredients and stir well.  Gently fold in grapefruit juice and sections.
5. Serve immediately or cover and chill until serving time.