Most cocks are in the range of 4'' (10) to 6'' (15). I love any size from small to medium. I mean 3'' (7.5 cm) to 5'' (12.5 cm). She has to be uncut so I can suck that foreskin and the moist glans. If she is a grower, then sooooooo much better. So i guess I have a thing for smaller cocks. Her balls should not be sagging, either. Maybe sagging sack is nice to watch but I don't want them for my girl. She must a tight sack with nice small balls.