"Like this!" Ino exclaimed.
The blonde girl quickly performed a set of hand-signs, surprising Naruto, who had no time to react as Ino struck.
"Body Control Jutsu!"
Suddenly, Ino began to glow with purple light. Afterwards, Ino herself turned entirely purple and afterwards, her consistency changed. Naruto couldn't tell at first but Ino had transformed into a gooey version of herself. Naruto was able to tell when the Goo Ino pounced towards him, entering his mouth in an unstoppable torrent. The startled genin fell on his back as the purple goo forced itself down his throat and into his body. He tried to close his mouth but the sheer pressure of the flow kept it open.
Naruto was startled again by a new sensation. A straining pain coming from his arm. He raised his arm to the level of his eyes and was shocked to see it swelling and bulging with sudden muscle. No, it wasn't just swelling. His arm's muscle were growing bigger. Not even just his arm muscles, Naruto felt as both his arms, his pecs, his abs, his back, his legs, his every muscle began to grow. By the time Goo Ino had completely entered his body, Naruto was a hulking mass of muscles and his outfit was straining to contain his new ripped self.
"What the hell?" Naruto wondered aloud.
"Like our new body, Naruto?" He heard.
"Ino? What did you do to me?!"
Before he receieved a response, Naruto's body began to move against his will, getting up off the floor and standing straight.
"I think we need to check out our new body properly."
Naruto's arms suddenly performed a set of hand-signs and a burst of smoke appeared around him. As the smoke cleared, Naruto saw he was in Ino's bedroom. His body walked toward a nearby mirror and stood in front of it.
"Not quite." Ino whispered.
Naruto's hands grasped the neck hole of his shirt and effortlessly ripped the garment off in one tug. Naruto stared in awe at his now heavily sculpted chest, his well-marked six pack abs, his broad shoulders and his thick, bulging, muscular arms. Acting against his will, Naruto's body began to flex his muscles, displaying all their raw strength.
"Oh yeah, we look totally hot!" Ino exclaimed.
"We?"
"Yes Naruto. As long as I'm inside you, this is our body. Don't forget who's in control here."
"It's still my body, Ino! Now get out of me!"
"Hell no, Naruto. This is way too much fun." She replied.
Naruto's hands turned towards his own body as to sensuously run their fingers along his pecs and his abs, feeling himself up.
"Oh yeah. So hot. So this is what you feel like when you use your Sexy Jutsu."
As Ino began to get aroused, Naruto followed suit as his pants began tenting.
"Oh, look what else has gotten bigger." Ino whispered sensuously.
It had. Naruto's already pretty impressive eight inch dick had grown into a full, ten-inch cock and had doubled in girth. Under Ino's command, his hand slipped into his pants and grasped his thick cock before beginning to stroke it. Naruto moaned. Even though it was his own hand stroking it, the touch on his dick felt foreign, as if it were a girl stroking him. Ino cooed as well as she experienced pleasure as a guy for the first time.
"Looks like we're gonna have to take care of this."