Sankaku Channel/muscular thighs

All or part of one or both upper legs, with good size or good definition of any of the upper leg muscles (quadriceps, hamstrings, or adductors .)

Should be muscular, but does not need to look like a bodybuilder. The legs can be in almost any position.

Muscular legs would be some combination of the tags muscular_thighs, muscular_calves or muscular_shins.

Related tags include muscle, adductors, inner_thighs, knees and knee_pit.