Ben 10 Alien Force - Ben 10 - Alien Force Image (14558887) - Fanpop - Page 7
Gwen design in the earlier season of alien force to ultimate alien, where she use to look more feminine with a smaller jaw, rounder eyes before she turn to Ben with lips. :
Gwen Tennyson/Gallery/Alien Force | Ben 10 Wiki | Fandom
black bikini Gwen Alien Force by TeenTitans4Evr on DeviantArt
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