Eric tapped enter on the keyboard and turned towards Lisa with open arms. "Well, get ready for a ride. I had to make quite a few changes for this one but it's going to be different. For both of us."
Lisa could already see changes happening to Eric, his clothes were looking a little tighter as his fairly average build started bulking out, his t-shirt now hugging a pair of somewhat obvious pectorals. She let out a little chuckle than slapped his hand over her mouth. Did her voice just crack?
Looking down, her recently modified breasts were shrinking away. From D cups down to their original B cups, and then even smaller until her chest was as flat as a boy's. "What?" Her voice cracked again as she looked at Eric but he smiled and shook his head.
"It's a surprise, but we can make it a show." He began stripping out of his clothes, tossing first his t-shirt than his pants aside, leaving him only in a pair of boxers. Lisa could tell her boyfriend wasn't only getting bigger, he was getting older. His youthful face hardening a little, brown hair growing up his now firm taught stomach which now had the beginnings of a six pack. The little bit of shaving he had to do was undone as brown hairs grew in on his sideburns, chin and upper lip.
Lisa felt herself getting hot as she watched her boyfriend grow, and decided to strip off her own clothes. Her shirt came off, though as as soon as she went to grab her bra it vanished. A no wonder, there was no reason for it anymore. Her chest was perfectly flat, with her nipples down to.. well, they looked to be the same size as Eric's. Her skirt was next, but she felt something strange happening between her legs. She reached down and was met with a small bulge in her panties. Quickly shucking those, a small dainty cock flopped free with a matching pair of tiny balls.
She looked at Eric in shock and he just smiled. "Just you wait. I think the sexuality tweaks are working, too." He licked his lips as he looked down at Lisa's tiny cock. He lay down next to her, placing his hand on it as he rubbed it with his fingers. Lisa moaned softly. So this is what it was like for men?
Looking down at herself she had to blink in surprise once more. Like Eric was doing, her body started filling out. Her chest was pushing outwards again, butt his time with muscle instead of breasts. Her arms and legs not only getting longer, but thicker, shoulders growing broader and her hands and feet larger. She was quickly catching up to Eric in size.
Eric had continued growing, now sporting the body of a life-long athlete. The hair on his arms and legs had darkened and thickened, and he now had a fairly obvious treasure trail in a line between his six pack abs. Lisa would have guessed him to be in his mid twenties, though the way his dark beard highlighted his powerful jaw may be adding a few years. Oddly his nipples looked a little swollen, larger than Lisa's were now. She reached out to give them a little tweak and he moaned softly, squirming under the touch. "Did you..?"
"Ramp up my nipple sensitivity... yeah, among other things." Lisa gave Eric's nipple another tweak and a drop of pearly white liquid formed on the tip of his nipple. She leaned forward and licked it off with her tongue, eliciting another soft moan from Eric. He hadn't lied to her, this was some interesting changes. She tweaked her own nipple, but other than a little pleasure nothing happened. "Nope, just for me. You have other surprises." Eric was still stroking her off, but she noticed his grip kept changing. As she looked down, she no longer had the little micro penis, but it was now a full shaft with balls to match, six inches in length and still growing.
Her view was becoming obstructed though as her pecs kept growing, her legs and arms likewise putting on more and more bulk, she noticed with a shock she was past Eric's size now. She flexed one of her jacked arms and smiled at the way the muscles bulged, veins popping out under her skin. Thick blond pubes were sprouting around the base of her cock, spreading outwards to her thighs and stomach. As a light dusting of brown hair grew on Eric's chest, hers became engulfed in a forest of thick blond hair. More bushes growing in under her arms. Her fore arms and legs likewise becoming hirsute.
"God, that's sexy." Eric said as he looked at her face. She reached up and was met with the feeling of facial hair across her jaw, a short but thick beard. Her hand ran over her head, her long hair having turned into a shorter, more masculine style. Although she was more jacked than her boyfriend now, she wasn't as defined, in fact she had a bit of a stomach, a thick, hairy muscle gut. She ran a hand over it with a shiver, loving the feeling of a hand passing over her fur.
"Fuck, Eric.. you could have just said you wanted to fuck a bear." Lisa's voice was deep and baritone, with a slight growl to it. Though the bodily changes seemed to be slowing, Lisa's cock was still getting bigger. Long and thick, the head swollen and purple. It must have been at least ten inches. While Eric now looked like a regular jock, albeit a jock with puffy nipples, Lisa was the definition of a muscle bear. "How.. old are we."
"Thirty. Both of us." Eric said. "Old enough to make this interesting, young enough to still be extra fucking horny." He pressed his lips up against Lisa's, their beards scratching together. Finally Lisa reached out to tug off Eric's boxers and her eyes went wide. While her cock was a monster, Eric was now sporting a miniscule cock. And as Lisa watched it seemed to fold in on itself.
"Oh yeah." Eric said with a grin. "There's the fun part." And as Lisa watched, Eric's cock pulled up inside of him forming a pussy. His clit was a bit on the swollen side, no doubt from the testosterone flooding his body, almost an inch long micro-cock of its own. But behind that was a perfect pussy, dripping eagerly as they continued to tease each other.
Lisa growled and pulled her boyfriend into her lap. "This is what I'm talking about." She said eagerly, strong enough to even man-handle the jockish Eric. Eric rose a bit on his knees and began to lower himself onto Lisa's swollen manhood, letting her take his new virgin manpussy for the first time. Lisa pumped her cock eagerly into her boyfriend, loving the feel of experiencing sex from the male side for the first time. The pussy felt tailor made for her cock, just tight enough. Knowing Eric, they probably were perfectly sized for each other. Lisa felt Eric have his first orgasm through his pussy.
Eric's hands kneaded Lisa's powerful chest, his fingers running through the thick blond curls. With a grunt, she felt her new orange sized ball churning between her thighs. Her strong hands digging into Eric's lightly fuzzy rump she held him down on her cock as she flooded him with her seed. One she felt her cock was spent, she let Eric go. He rolled off of he and flopped onto the bed next to her with a laugh. "Wild enough for you?"
Lisa nodded. "For the first round, yes." Her bearded face split into a wide grin.