Muscle Control: Apollo's Belt "Control"

Apollo's belt or iliac furrows may not be a muscle, but it's the most aesthetic and arousing part of the abdominal area. Extending all the way from hips to pubes, iliac furrows are an anatomical feature of a ligament. Not being a muscle, they aren't supposed to move, but control of the abdominal muscles can cause the illiac furrows to become more apparent or be buried in the abdomen.

Apollo's belt/ Iliac furrows are known by many other names such as Adonis' belt, athlete's girdle, pelvic lines, devil's shoulders, V muscles, V lines, sex lines or in their most vulgar and slang term cum gutters, because the iliac furrows build the (inguinal) canal through which the spermatic cords pass through, beginning from testicles (each testicle has its own cord traveling to the corresponding side of the iliac furrows), reaching the bottom part of the iliac furrows, travel at half of the total length of them and then sink inwards from which the sperm will eventually find release through the penis.

Primarily, they serve for contralateral rotation of the torso and secondly as semen depositories.

Practically being (among other things) the enclave of semen-flowing tubes and the fact that they form a big arrow pointing directly at the penis is thought to be the reason for being subconsciously/instinctively considered an extremely arousing and aesthetic area of the male body.