Beechcraft Sundowner pilot owner reported an unstabilized approach and a bounced touchdown short of the landing runway while allowing another more experienced pilot to fly and familiarize with the aircraft. The aircraft bounced short of the runway and the pilot owner called for a go around; then landed safely with no aircraft damage.

Narrative

I was right seat in a Beech Sundowner I own. A high-time pilot (10;000+ hrs) was in the left seat. He had recently received his Flight Review. He has hundreds of hours of experience in a Sundowner. He wanted to re-familiarize himself with my plane. After a slightly hard touch-and-go; he was lined up for a second touch-and-go. At first; he was high; but then got low and slow. Approximately 100 feet before the paved runway began; the stall horn briefly beeped. I called out that he was too slow. Then the plane touched down in the dirt before Runway XX and bounced. The next bounce was on the pavement. I suggested a go-around. He added full power. It took a while to gain speed and altitude; but we were again flying. The next landing was fairly good. I mention all this because I thought he was PIC; but realize that he may not have had enough landings to carry a passenger. In which case; I may have been PIC. There was no damage to the plane. I should have been more assertive about telling him to go around or add power. But I am not an Instructor and I had respect for this pilot as he has much more experience than I do.