This takes place during Gokaiger episode 27: A more than usual Gokai change, in which a monster switches Luka's and Doc's bodies.
It starts in the scene where Luka in Doc's body rescues a pair of schoolgirls from a guy who's hitting on them, but in this version, Doc decided not to come with her and is back on the Gokai galleon.
Luka was certainly enjoying her time in Doc's body. As the two schoolgirls she had endeared herself to excitedly received "his" autograph and took pictures with "him", she had to wonder why Doc didn't make appropriate use of his good looks.
He was honestly really attractive and all she needed to do was change his hair and his clothes to attract the ladies. With a pair of skinny jeans showing off his sexy legs and a stylish hooded vest, Doc could even give Joe a run for his money.
She realized she was daydreaming a bit when she noticed the two girls were whispering to each other. "Huh? What are you two whispering about?"
One of the girls giggled as the other blushed. "Yumi here wants to ask you something." The embarrassed girl, apparently named Yumi, was suddenly pushed forward by the other girl.
Yumi stammered a bit before starting her question. "Well we were wondering…sense you're an alien." She looked really nervous. "Do aliens have, you know…"
The other girl rolled her eyes and interrupted. "Yumi and I can see that bulge in your pants and we wanna know what your cock looks like!"
Luka was stunned. She looked down to realize they were right. There was a big bulge in "his" skinny jeans. The feeling was so alien to her, pardon the pun, that she just assumed that was a normal feeling for a guy and didn't know to cover it up. The girls must have been Doc's type, so his body got excited by their short skirts and touching "him".
The pushy girl snapped her fingers. "Hey, Don, are you listening? Answer our question!"
Luka stuttered. "Do I have a-" She honestly wasn't sure what Doc had in his pants. When she had changed earlier, she did buy a new sexy pair of tight boxer briefs, but she avoided looking down while putting them on. She knew they all looked alike as far as she could tell, but they were all aliens from different planets. For all she knew, Doc had something really weird between his legs.
Mistaking "Don"s reluctance to answer for not wanting to show them. The pushy girl, Miyo, decided to give the pirate a reason to show them. Without a warning, she pulled down Yumi's pink flower-patterned panties and then lifted her plaid skirt up, displaying her shaved and slightly wet pussy to the surprised pirate.
"If you show us your alien dick, you can put it in here!" Miyo was speaking without Yumi's consent, and Yumi freaked out, turning red and trying to pull her skirt back down. Unfortunately, she pulled too hard, and it tore, dropping done to her feet.
Feeling bad for the exposed girl, Luka quickly unzipped "his" own pants and took them off, holding them out to Yumi. "Here, I don't know if they'll fit but you must be embarrassed."
For some reason, Yumi wasn't taking them. Instead, she just stared at "Doc". Luka was confused. "What?"
Then Luka looked down and realized what Yumi was staring for. Again, not really understanding the feelings of a guys body, Luka had failed to notice that "his" penis had escaped the tight boxer briefs when it got hard. Now not waering any pants to cover them, "Doc"'s hard member was totally visible and stciking out right at the schoolgirls.
Though Yumi was stunned in silence, Miyo was the exact opposite. She was almost cheering with excitement. "Wow! I knew an alien would have a really big dick!" She pushed Yumi forward, the half naked girl stumbling before Luka caught her. Unfortunately that meant "his" dick ended up touching the girls bare stomach. Luka shuddered. The very sensation of the sensitive tip of Doc's penis against the girls skin was almost like an orgasm. She had to feel that sensation again.
Luka wrapped her left hand around the shaft of the cock and began to rub it around Yumi's belly. Accidentally, she left a trail of sticky precum wherever it touched. Almost unconsciously she moved from simply rubbing it around to jacking it off, thrusting her lips like she was having sex with the air. Though Doc would normally last longer when he masturbated, Luka was so unexperienced with the feeling that she lost control after only ten seconds, shooting a big splash of white cum all over the girls shirt and stomach.
Extremely surprised and embarrassed, Luka rushed to take off "his" shirt and used it to wipe the spunk off of Yumi. Both girls could do nothing but stare as the pirate, as his sexy abs were now on display and his dick was still hard and dripping extra cum.
Unable to take it any more, Miyo unbuttoned her shirt and rushed over to the sticky pair. Revealing she wasn't wearing a bra that day, the girl bent down and started tittyfucking the pirate's swollen dick. "I bet this feels better than Yumi's stomach, huh?" The feeling was too much for Luka to even speak and she slid to her knees as her legs couldn't stand the pleasure. It was only a minute before "he" lost control again and shot a second load of salty spunk into the excited girls mouth and breasts.
She licked it all up as quickly as possible and then stood up over "Doc". Now lying down, he could see that she wasn't wearing anything under her skirt and her hairless slit was soaking wet. Juices dripped all over "Doc's" new boxer briefs as she lowered herself onto his shaft.
A minute later, Luka was in boy heaven as Miyo bounced up and down on his rod, "his balls smacking against her butt with every bounce. Meanwhile, Yumi was licking his balls while lying in front of him on her stomach. She was fingering herself really hard and was now totally naked because of how sticky her shirt got.
Luka never realized how pleasureable having a penis could be. She always imagined it must be a pain since you cant stick your fingers inside to masturbate, but just touching the cock head against anything could almost make Doc's body orgasm and she was loving every second of it. Even after shooting two really big loads of cum, she could feel another on the way.
"Doc" finally spoke up. "Miyo, I'm gonna cum again! Inside you!" Miyo agreed. "Me too!" Even Yumi was close to having her first orgasm just from touching her clit. Yumi was the first to cum, moaning like crazy as a big splash of pussy juice came out of her, making it almost look like she had peed herself. Right after, "Doc and Miyo came simeltaneosly, Luka's dick letting out the biggest shot of cum inside the girls pussy and then getting drenched in her love juice.
As the three lied down together afterward, Luka couldn't help but wonder how Doc was using her body. "He better not do anything weird with it…"