Ben 10 x Starfire

Starfire

 Gwen groused as she brushed Ben's long shoulder length hair, "Seriously Ben I think your hair is growing faster then mine. Wasn't it this long yesterday?"

Ben shrugs.

"Stop fidigit..." Gwen sighs, and puts down her brush. "Let's try something different."

Ben honestly couldn't care, and so Gwen stepped away and back, messing with his hair as he played on his hand console. She grinned as she held up a mirror to show bents long, brown, hair tied with some band into a single tail that rested on his shoulder.

"With the tan it looks cute on you."

Ben scowled, "I look like the gir~"

Just then a pair of small tents pushed up from Ben's shirt. Gwen gasped, backing up, "I swear Ben I didn't do anything."

Max hurried over, "Ben? Gwen? What is it now?"

"Ben just grew...actually I don't know..."

"Let me see!" Max insisted as Ben and Gwen both blushed, as the older man rolled up Ben's shirt, and motioned for Gwen to get his tool box as he drew out strange tools.

"When did this start Ben?"

He knew now was the time, ever since the Animo fight the changes had been coming fast and frequent. Darkening skin, lighter hair, and most alarming his shrinking...a few things. To the point that most recently there was nothing left...there.

Suddenly the watched beeped incessantly and his pants turning white and shrinking to s mini skirt, his shirt pulling up to a crop top as his chest expanded outward, hips flared, and hair exploded out to a large red-orange mane as the Watch moved to an icon just below her neck and turned white. The Pair gasping as Ben scrambles for the mirror, "It's the alien girl from the before!"

"Is that why you've been acting so weird?!" Gwen presses, "You were stuck in some weird new mid transformation?"

Ben looks confused, "Why am I the girl though?"

The orange cat leaps into her arms, purring.

"Grandpa Max where did the you say you found the cat?"

The trio all starting at the purring animal.

"When we the clashed the watch released some kind of energy ball. It must have scanned her and added her to the watch and reverted her to this?"

Ben picked the cat up toward the Icon, wincing, "No the claws please."

The cat went quiet, the icon beeping and then spoke, "Altered DNA detected, attempting to fix."

Max and Gwen backed away as a glow enveloped Ben and the cat. When it passed Ben was back to normal and the alien was in his arms.

"I am the back!" The girl said with a broad smile, kissing Ben's forehead, the boy blushing visibly.

Gwen got defensive, "What was all this about, why did you tough my cousin into...you?"

"I did not," the girl floated away, smiling, "They call me Starfire, I am what you call the alien."

"We all know about aliens," Max injects, point to the Omnitrix, "Ben can turn into a bunch of them. What's your species?"

Starfire smiled, practically purring despite not being a cat any more, "My race are the Tameranians," as Ben turned the dial on the watch, "Cool, I have a new alien!"

"Never heard of them, must be out of Plumber jurisdiction."

Ben slammed the watch down, and once again become Starfire, gender included.

"Why does this form make me the girl?"

Starfire shrugged, "That watch is not any technology I know of," she reaches for her belt and takes out a hidden circle shaped device, "Robin? Titans? Can you the hear *meow*" she coughs as she starts to talk like a cat again. Then put the communicator away, "Why is no one responding?"

"Probably out of range?" Gwen inserts, grinning as she looks to girl Ben, "Starfire was it? Since its just us girl why don't we head into town and have some fun. We can go shopping, get you both some cute dresses."

Ben and Starfire's eyes glittered with joy, "I would love to go the shopping with you!"

"This is a bad idea Gwen, we still have so many questions about our new friend and Ben's new transformation."

"And we can ask them while shopping."

A trio of puppy dog eyes melted any resolve Max had as he returned to the drivers seat and took over for the self driving mode with a sigh.

Some time later as Ben was spinning and showing off a cute new dress for Starfire and Gwen the watched timed out, leaving the boy Ben in a refitted dress, he glared daggers at Gwen as she and Starfire chuckled.