Vegeta and Goku had finished their sparring for the day when they decided to go for a round of more intimate fighting.
Vegeta pulled Goku to his knees, running his hands over the larger Saiyan's broad shoulders as he kissed him forcefully on the mouth. Goku pulled the shredded remnants of his prince's attire from the sweat-slicked body while he returned the passionate kiss. The Saiyan prince snaked his hands to the back of his partner’s neck and curled his fingers under the cloth to grip it as he ripped the clothing off.
Goku saw a bright glow behind the trees and said, "I have to go in, Vegeta. The moon--"
"Nonsense! You don't have a tail, I don't have a tail. Nothing to worry about."
"But--!"
"No!" The older Saiyan motioned for the younger to get up and when he stood once more, Vegeta removed the rest of his clothing. He looked at Goku's bare backside and commented, "Told you."
While Vegeta was distracted, Goku took his opportunity to shift dominance. He moved behind the prince, denying him the object he was so interested in and wrapped his arms around him. Not bothered in the least by this turn of events, Vegeta leaned into the embrace.
Goku kissed his prince from neck to shoulder, enjoying the little moans Vegeta emitted. Smoothing his hands over the other Saiyan’s broad chest, Goku gently rubbed his nipples taut with opposing hands.
Vegeta closed his eyes and enjoyed the sensations Goku was causing to course through him. Taking one hand away from its respective areola, Goku trailed his hand down the planes of sculpted abdominal muscles. Sending his questing appendage ever lower, he found the treasure he sought and bade it rise.
Stroking the royal phallus, Goku delighted in the heat Vegeta suddenly radiated. Excited by the movements of the hips thrusting against him, Goku's own penis stood at attention. He removed his other hand from its duty, freeing Vegeta's chest from his maddening caresses and stuck two of the fingers into his enraptured prince's mouth. Moaning as Vegeta sucked his digits, Goku jerked him faster. Taking his suitably moist fingers from their heavenly devourment, Goku inserted them gently into his willing partner. Vegeta gasped his name in pleasure when he found his prostate gland and thrust one last time, shooting his semen over his abs as he went weak in the knees. Pulling his digits free and removing his hand from Vegeta's spent organ, Goku let him fall to his knees, then gently pushed him further, forcing him to all fours.
Breathing hard, Vegeta hung his head, waiting for his impalement as he tried to catch his breath. Goku took a moment to gaze at the newly arisen full moon. Immediately as the deflected rays of sunlight hit his retinas, Goku's eyes turned red, the whole orbs. His molars turned to carnassals, his cuspids to long, pointed fangs, slanted slightly toward the edges of his mouth. His mandible and maxilla extended outward as hair erupted all over his body and a long, bushy tail burst forth from the base of his spine. His ears developed points, his nails turned to black claws which he sent digging into Vegeta's flesh as he plunged his altered penis into the unwary prince.
Vegeta moaned in ecstasy as he was filled with Goku's hard, thick length. Goku slammed into the kneeling man repeatedly, eliciting moans and grunts of pleasure from him. When an odd sensation came over the thrusting individual, he lifted his leg over Vegeta's back and spun one hundred eighty degrees; the base of his penis having swollen, effectively sealing it in place. Vegeta screamed in agony as his body was not meant for this kind of treatment. He looked over his shoulder and gasped, amazed at the transformation Goku had undergone. "What the hell?!" he whispered to himself, astonished.
Goku ejaculated twelve times into the immobilized Saiyan. When the swelling went down, they both pulled free of one another and Vegeta high-tailed it back to Capsule Corporation, uncaring of his nakedness. The werewolf watched him fly away, then loped into the woods after less airborne prey.
Disclaimer: I don't even own the computer I'm typing this with
