Fanservice. It's just freaking awesome. Examples. Enjoy.
DC Comics
Cheetah
Fire
Gotham City Sirens
Gotham City Sirens
Hawkgirl
Hawkgirl
Knockout
Oracle
Power Girl
Power Girl
Ravager
Ravager
Saturn Girl
Terra
Vixen
Supergirl
Powergirl and Terra Atlee
Batgirl
Bleez
Marvel Comics
Aurora
Betty Banner
Beverly Switzler
Black Cat
Black Cat
Black Cat
Black Widow
Black Widow
Boomer
Captain America
Colossus
Crystal and Medusa
Crystal
Dagger
Domino
Enchantress
Excalibur
Gamora
Ghost-Rider
Heroes for Hire
Jean Grey
Kymaera
Medusa
Persuasion
Polaris
Polaris
Rogue
Scarlet Witch and Clea
Scarlet Witch
Scarlet Witch
She-Hulk
She-Hulk
Silver Sable
Silver Sable
Storm
Storm
Tabitha
Tigra
Tigra
Typhoid Mary
Val Cooper
Wasp
Wasp
X-Men