Because there is no more subtle, and at the same time aggresive staple of absolute eroticism.
The holy forbidden kingdom of what lies under a girl's skirt is our creed! come fort and join :3
hm..... there are a lot of them that are rife with pantyshots... i think the one i love the most is kissxsis, the anime sucks but ako-nee and riko-nee pantys are just soooo well done