Was reading the latest manga chapter of Air Gear (ch. 284) where Ringo, Sumeragi and the others went for the Battleship with the rest of the cast are so Sumeragi could fix Ikki's Storm Regalia. But as soon as they go there, they faced against two other Gravity Children. One of them is a woman wearing a full body suit and faced off with Benkei. Seems her name is Morrigan the Grail. She suddenly grabbed Benkei's motorcycle and at the same time she went grew and went totally buffed and tore up the bike. The muscle growth is instant but at least you see her tearing her clothes from the growth. Then the next page shows the result of her muscle growth. Not as big as she went through on the first page of the growth but at least she looked well built. Here's the link to the chapter.
http://www.1000manga.com/Air_Gear/284/01/
Just in case anyone want to go straight to the growth, here are the two pages.
http://www.1000manga.com/Air_Gear/284/16/
http://www.1000manga.com/Air_Gear/284/17/