"Mom?" Jeff panted. The sensation was amazing. Jeff was both ashamed and excited. The canine member twitched. He could feel the muscles in his crotch clench.
She could feel the warmth radiating from his penis. "Good boy. Finish up now."
Jeff's eyes went wide. "M-m-mom. Ah-ah-ah-ah!" He couldn't finish. He let out a high pitched yelp. Jeff's penis started to slide out of his sheath. He was hard.
Emma couldn't keep her hands away. She had to feel the soft, furry dog. Her hand moved along Jeff's neck, feeling every muscle, bone and sinew. His canine form was muscular and warm. She wanted to make her dog feel good. She NEEDED to.
Despite him living with her for a few years Emma didn’t know what a dog’s cock looked like. Kneeling down Emma peered where her mom’s hand was. The member was hanging out now. The German Shephard's cock was pink and wet. It was small, a bit longer than her own thumb. Precum started to leak out. Her mom’s hand was massaging the base right below a weird orb or glad. Emma felt her cheeks burn. She had no idea her pet’s cock was this small.
"It's so cute!" Emma squealed. "Look, his little dick is poking out!"
Jeff whined. He couldn’t see below him. There was no way he was small. “I-ah-I thought you set everything t-t-t-o average. Urg!”
“Well…I may have set one thing to below average. Now puppy, blow your doggy load for you mom and sister.”
Emma was too focused on the tiny cock to grasp what her mom was saying. “Cum for us Jeff. I wanna see it”
Jeff couldn’t stop himself. Not that he had much of a choice. He had to cum. He didn't care how wrong this was. His mind blanked. "M-m-mom!" Jeff barked.
Jamie ignored him. She gripped his knot tighter, while using her other hand to stroke his shaft.
Jeff let out a series of short barks. It didn't take long for his tiny cock to explode. The dog's hips rocked against his mom's hand. "Ah, ah, ah, ah." He let out a long howl as both women cheered him on.
"Yea, there you go. Cum for mommy!!" Jamie Shouted
"Good boy Jeff! You're such a good doggie!" Emma had her hand deep in her pants.
"Mom, Emma!" He cried. His small cock erupted. Cum flew from the tip of his penis. Jamie moved her hand to catch some of the cum, but it was too late. He was making a mess. His cum splattered on his mom's clothes, the floor and on his sister's legs.
Both women were shocked at the sheer amount he could produce. His orgasm lasted for several seconds. Jeff's entire body was shaking. He couldn't think. Every sense was flooded by the euphoria of his climax.
Jamie and Emma were silent.
The dog let out a loud sigh. He collapsed, landing in his own puddle. "Wow." He whispered.
"W-wow." Jamie echoed. She opened her palm, revealing a large pool of cum. "That was a lot honey. Good boy."
"Good boy, Jeff!" Emma repeated. The women watched as the dog's small cock retreated back into his sheath.
"T-t-that...was...oh wow..." Jeff's human mind was lulling him to sleep, while his canine mind was wide awake.
"That machine was a great idea hon." Jamie said planting a kiss on her son's cheek.