Melissa turned around to yell at Erika once again but stopped with her mouth open. Erika, who had tried to follow Melissa, had fallen on the floor hanging from Cole. As she watch, Cole's dog member shrinks just enough for Erika to slide off of him. Melissa now looked on to Cole as his penis shrank from its dog form down to his new human size. Melissa couldn't help but think that it was much larger than she had seen it the last time she caught the two in this act.
Melissa came back to reality when she felt a kick from her own belly. Shaking her head, she runs over to Erika and tries to help her up. "I guess I owe you and explanation." Erika weakly says.
Minutes later, the three are up in Melissa's room, all naked while their clothes wash from the multiple messes and orgasms. Erika gives Melissa the short version, about the salve, Cole trying to help and ending up being affected by the salve as well, and Erika impregnating two of her friends, Melissa and Emily.
"So, Emily is pregnant too?" Melissa said, now a little calmer.
"I think so." Erika replies. "Somehow, the four of us start to turn into dogs and become extra horny."
"I had to come home from school, because of this." Cole says pointing down at his penis. It was defiantly bigger than the other night. "It started growing during class. I was able to take care of it some, but when I got home and smelt the two of you, I just kind of lost control."
"It's okay, Cole." Melissa replies. "As okay as mating with my girlfriend can be."
Erika then turns to Melissa. "Well, we have a decision to make. If I don't do anything, then I will have Cole's baby. But if I use the salve again, I will not get pregnant, but I will start to turn into the mixed gender dog that's been impregnating everyone."
Melissa couldn't help but laugh as that statement, to both Erika's and Cole's surprise. "It maybe the hormones but that just sounded funny." Melissa then rubbed her multi-breasted stomach. I think by tomorrow I will have either given birth or exploded. But now knowing the truth, that it was you that did this with me, I feel better about it. I want us to stay together. Now, it's up to you if you want to keep his kid."
"Hey, don't I have a say in this." Cole asks, "I mean, it would be my kid too. I would help take care of it."
Erika smiled at both Melissa and Cole. They didn't know about her earlier aborted birth from her dog, but she now felt she had a chance to stay female.
"I think I will keep the baby." Erika replied. "If you still want me after having a kid with your brother."
Melissa gives Erika a kiss on the lips. As they kiss, they started feeling a burning sensation side them. They slowly started getting wet again as they started grinding their bodies on each other.
"Um, Girls!" Cole says, bringing the two back to the room. "Can you two hold off a moment?" Melissa and Erika unlocked their lips and turned to look at Cole. His penis had grown again, transforming into a dog's penis, knot and all. The two girls giggled as they nodded in agreement.
"Why don't we all take some cold showers to clean off." Melissa suggested.
Erika's eyes then grew wide open, "We need to tell Emily." That is when Erika realized she didn't have her phone.
"It must still be in my sister's car. I'll have her drop it off later. I'll text Emily to come over really quick." Melissa replies.
Cole shifted in his set in his sister's room, his penis pulsing between his legs as his balls started to grow larger, fur covering them. "Please," he grunted out. "Don't say Cum... I can't..." Cole falls onto the floor, his penis stretching out even more. Melissa and Erika could hear the skin from his penis and balls stretch and grow. Coles ears become pointed as his K-9 teeth start to grow more predominant. He needed release soon before he completely changed.
"What do we do?" Melissa asked.
"One of us needs to help him release." Erika replies. "Quick, let's get him into you loo and we can decide in there." Erika gets up quickly, but Melissa is slow to follow. Her stomach was too large for her to move quickly. Erika is able to get the changing Cole into the loo, but not before her and Melissa starts to feel the effects of his smell. They could smell his need and they both start to change as well. As Erika lays Cole in the shower, she leans with her back against the wall as three sets of breasts grow in under her original. Her main breasts start growing as well as the get darker and become covered with fur.
"Help him. It's okay." Melissa says with a husky voice. She had too started being covered with fur. She had one hand between her legs and the other was squirting out milk from her breast.
Erika nodded as she felt her face start to push out into a muzzle. Erika turns back to Cole just to catch a long wolf's tail grow out from him. He was almost a full mix of boy and dog. His face had pushed out into a muzzle as his hands and feet more resemble paws. Fur covered most of his body and his ears sat on top of his head. He had also grown in height as well much more muscular. Cole's only remaining normal feature was his eye, which hadn't changed.
As Cole stood back up, now almost seven feet tall, Erika could see that his penis also grew in size dramatically. Almost instinctively, she turns around to present herself to him.
Cole presses his penis up to her asking lips. Slowly and gently, he pushes inside her. Erika face wrenches as Cole pushes her to her limits. She was still so full from their mating not even a half hour before. Cole reaches around with his hand paws and cups and squeezes Erika's breasts as he pushes in further. As his knot reaches her, Erika whines in pleasure as she pushes back on Cole to take his oversize knot. Erika looks forward in a haze to sees Melissa pleasing herself from the show that she and Cole were providing.
Back and forth, Erika and Cole grind on each other, almost howling in pleasure. Melissa also let out a low howl as she was the first to feel the release of pleasure. Melissa slides to the floor as her body starts to turn back to its normal pregnant self. Soon, Erika could feel Coles balls start to quiver as he came close to his climax. Cole released into Erika, sending her over the edge. They pulsated as Cole's goo starts to fill up Erika up again. Erika looks down to see Cole's dog penis slowly be pushed out by the presser before he erupted out of her. Goo plopped from between her legs as Cole continued to release his goo all over the shower and Erika's back. Minutes later, Cole's dog penis finally stopped firing as it pulsated just above a bent over Erika. Melissa looked on as her girlfriend and slightly older brother return to their more human selves.
"What.... was.... that?" Cole asked. "It never happened again that fast before." He then looked down at himself. His eyes widen when he saw his penis. It was fully soft, but it had grown again. "I'm bigger."
Then is hit Melissa. "Cole, did you drink from the cup in the fringe?"
"Yes." He said, still catching his breath. "I was thirsty from school, and I thought it was left over milk."
"That was my milk, you ass." Melissa yelled. "From my breast. I had milked them from myself this morning and was going to test it, but mom called for school." Erika turns around to look at Cole.
His penis wasn't the only thing that had grown, his whole body had. He looked stronger, muscle more defined and decently taller. But something was defiantly still the same. He didn't have any facial hair still. He was 14, a year older the Melissa, but after the growth spurt, he didn't show any facial hair. "That's good." Erika said out loud.
"What?" Melissa asks, confused.
"Oh, your brother grew, just like we have, but he is still baby faced. That's means while we are all getting physical mature, at least we are not getting older." Erika explained, slowly trying to stand up in the tub as more goo falls from her.
Melissa and Cole both then realized what Erika was talking about and sighed in relief. "Well, let's get back to calling Emily over, before something else happens." Melissa suggested.