A/N: Chapter based off of episode 33: Sidekick.

A week after the titans have returned to titans tower, Starfire knocked on Robin's door. It opened to show the titan leader.

"Hey Star. What's up?"

"May I enter first?" She asked, giggling in a special way he's grown accustomed to.

"Y-yeah, come in." He mumbled with a sheepish smile. The princess entered, carrying a bag that he hasn't noticed while she was outside. Putting it down, Starfire walked to her boyfriend, and wrapped her arms around him.

"Robin?"

"Y-yes?"

"Kiss me."

"Hehe, straightforward. I like it." He replied before planting his lips on hers. She moaned as they tried to walk to the Boy Wonder's bed and fell down onto it, bouncing somewhat. Starfire pulled him so that he was on top of her, and hugged him tightly as they let their tongues wrestle. She could feel his dick starting to harden as he grinded his groin into hers' and pressed his chest into hers', feeling her breasts squish underneath his ribs. Separating from the kiss, she whispered to him,

"Take your gloves off." Not wanting to question this, Robin removed his gloves and threw them away. Taking hold of his wrists, the alien girl guided his hands underneath her top and let them rub up and push against her soft orbs." Play with my grebnacks all you like. Do not hold back. Squeeze and squish them to your hearts content. To hear such a provocative request just made him more excited, and obeyed by giving her the best massage he could muster. Putting strength in his grip, his fingers sunk into the doughy feel of her bosom, soft yet firm.

"I'd be glad to take you up on that. Although, I thought you didn't feel much pleasure from most of it."

"Just the flesh within. The nipples are what really turns me on." Remembering now from what she just explained, Robin pulled her top up and squeezed her right breast while he began to suck on the erect nipple, making his girlfriend gasp. "Augh! Just like that! You're groping them so hard! Keep sucking!" Even with the lack of arousal from the general flesh of her breasts, the way Robin was manhandling her assets were still having an effect on the alien girl. The titan leader would either dig his fingers in as deep as they would go, squeeze them so hard the nipples twitched, or squish them down so flat the orbs would push past his fingers due to how malleable they are. It almost hurt with how much strength he was using, but Robin knew how strong to grope without actually hurting her. "Robin, how much do you like my grebnacks?"

"They're so fun. I love this just as much as kissing you and feeling your hair. How is it for you? I'm not doing it too strongly, am I?"

"No, this feels really good. It is like a strong massage. I can almost feel the flesh of my breasts loosening up."

"Then let me massage them some more." The male titan chuckled before going back to sucking the nipple he was initially on, only now he was gently nibbling on it, resulting in the princess to gasp louder and writhe under his body. He squeezed her right breast as much as he reasonably could while also kneading his fingers into her left, his index fingers especially pushing into the nipple.

"Oh X'Hal! Your fondling technique is so vigorous! I can also feel your hard dick rubbing against my haringor down there. What was it called? Pussy? It feels so good! I'll explode from this much stimulation! Help me reach it!" She cried out, wanting that sweet sweet release. Robin loved his girlfriends whimpers when she was like this. Deciding to prolong it, the titan leader pulled her up, positioned her on his lap with her back to his front, and continued to massage her breasts while using his legs to bounce her up and down. "Oh X'Hal! Oh X'Hal! This feels even more stimulating! I love how intimate you are! I love you! I love you!"

"I love you too, Kori. You're so fucking sexy Kori."

"Ah! When you say my name like that, it just turns me on even more!"

"I love you Kori. I love you. I... I'm going to cum soon Kori!" Robin told her in a tensed way, feeling his dick about to release. Starfire moved her hands towards his groin to unzip his pants and pull out his hard penis. She stroked it with her right hand while her left messed with her own pussy.

"Yes! Pour it all over me! Make me wet with your cum! I want it so bad!" It didn't take long for the two teenagers to reach their climax nearly at the exact same time, screaming in euphoria. The Boy Wonder's cum splattered all over Starfire's upper body, some even reaching her face. They both fell back, Starfire's body and hair practically blanketing the upper part of her boyfriend.

"I love you." They said at the same time. The two softly laughed from that and kissed each other.

"I'm so happy. You make me so happy." Starfire told him in a breathy voice.

"I'm glad... to be your source of pleasure." Robin panted. Once the two had time to recover, the teenage couple went to go shower together to both clean up and have a second round in there. Upon returning to the detective's room, Starfire went over to her bag.

"Oh yeah, what do you have in there? I honestly forgot you brought that in."

"Remember when I put on the Batgirl costume and you drooled when I said it was too tight to remove?" The Tamaranean asked. Thinking back to that moment made the male grow a bit in his groin again.

"Uh... yeah. You were quite sexy in that.

"Yes, so I have bought a few costumes on the line that might also be 'too tight to put on'." She giggled at her choice of words. "And I was hoping that if putting one on was too much trouble, you would..." She slowed her speech down so that it was extra sexy. "...help me put it on."

"Oh definitely! I'd be glad to help!" Robin readily agreed, nodding his head vigorously.

"Glorious! Let us begin then!" The alien princess cheered as quickly shed her clothes, along with Robin as well, and got out the first costume. It was Power Girl's given the white color, lack of leggings, and lack of a chest insignia. Putting it on, it was easy enough to put on through the legs, but appeared that once the back zipper reached where her ribcage began, progress began to slow down. "Dick, I need your assistance zipping up." She requested, making sure she stood in front of a full size mirror Robin had.

"On it." The Boy Wonder said as he went to her. Pushing her hair aside, Robin told her,

"You may want to breathe out. That usually help with zip ups." She did as she was told, thus giving him an easier time to zip the piece, but the real issue was when they reached her breasts. Even without the zipper they were slightly spilling out. "Alright, I'm going to try something. Ready?"

"Yes."

"Alright." A little slowly, he started pulling the upper part of the zipper together, having some difficulty. Starfire could feel her breasts really start to squish into her ribcage, with her visible cleavage really popping out. Using his teeth, Robin pulled the tab up, which managed to go up past the chest part and reach the top. "Okay then. How are you feeling Kori?"

"I don't know. It's hard... to breathe." She managed to wheeze out, barely able to get a breath in fearing the zipper could burst before it should. And he noticed this.

"You don't have to do this Kori. If it's hurting you I don't want you to suffer. Least of all from suffocation."

"Please. If I can... survive in space... a tight costume... is nothing. It doesn't... hurt either. If I can... take hits from... Cinderblock, I can handle... a tight costume."

"Well, if you're sure."

"Yes. Now... please take... a hold of... the zipper please." While there wasn't much to grip onto, he was able to get his fingers around the strained zipper. Taking a slow deep breath, the female warrior's breasts started to squeeze farther out of the cleavage window. After three seconds, the bottom of the hole broke, just leaving the rest of the fabric to rip open, letting her bosom to push out fully instantly, bouncing for a second.

"Holy shit." Robin uttered, his boner finally getting enough rise to get in between her thighs, pushing into her groin.

"Ah, there's the thing I wanted to see." The female titan sighed as she closed her orange thighs together, stroking his head. The titan leader moaned from the teasing, but then she stepped forward away from him. "I have more to show you." Removing the ruined costume, the next outfit was Wonder Woman's. Again, putting it on around the waist wasn't a problem, but unlike the previous costume, she was having trouble getting the gilded eagle topping the small costume to go over the swell of her bust. And even when she could it would just slip down. "It seems I need help."

"Will do." Robin responded. While Starfire held the front up, the Boy Wonder eventually zipped it up. The outfit was... obviously ill fitting. The lower torso section was taut from how tight it was and the top part, now unable to slip down thanks to how big her assets were, was pulling her grabnacks downward.

"Well, it is sort of better, but the my grebnacks are not appreciating the pressure."

"How about raising your arms? See what happens?" Her boyfriend suggested.

"Okay." She nodded. Raising her arms, the eagle strained to keep the orbs contained. The zipper tab shot off, nearly hitting Robin whom dodged just in time with a yelp. With the zipper broken, her breasts shot upward and bounced a couple of times as the front fell down. "That was easy." Shrugging, the princess turned to Robin and kissed him. "So, how is my modeling in these tiny costumes?" She asked the red Robin, his face resembling the shade of a tomato while he stroked his dick.

"You look so freaking hot." She giggled to his response and stepped close enough to kiss him on the lips while assisting in rubbing his hard penis for a few seconds.

"Are you getting close?"

"Yes."

"Well please hold off as long as you can. I still have more to show you." Taking off the costume which could be fixed later on, the next costume was from a underrated yet still somewhat popular franchise associated with Wonder Comics. And the costume associated was She-Bulk. It appeared to be the most simplistic of the outfits so far, being another leotard like costume but it was sleeveless and only had two colors, a white stripe in the middle surrounded by purple stripes. Not only that, it seemed like this was so far the tightest so far as well in that even trying to fit her thighs through the holes provided some difficulty. Zipping up was also quite the hassle as it seemed like it was a non-stretchable latex. When it came to trying to zip up around the chest area, Starfire's bust was squeezing out through the sides, and the front was very taut with a rippling look.

"Okay. Let's try something. Can you float upside down?" Robin requested.

"Alright." Starfire agreed to with an intrigued expression as she did as he asked, her hair pooling down on the ground. Going to one of his tools which was an unequipped grappling hook, Robin pulled the string out, and went back to his floating girlfriend to tie the string to the zipper. Crouching down into a ball, the Boy Wonder instructed,

"Okay, now float upwards so that my full weight can pull the zipper." Seeing his logic now, a smile graced her face as she elevated higher into the air. As the pounds increased to pull the zipper, it slowly it steadily went up her back, flattening her bosom more and more. It was so tight Starfire literally couldn't breathe. That only lasted a couple of seconds though since the seams started to slowly rip in the front until they literally burst open, her two grebnacks spilling out. Robin in his aroused stupor dropped from his gadget landing on his butt. He couldn't say anything coherent as he rubbed his dick more vigorously, especially when he used her pooling hair to get a more unique feel while doing so. After a breath of air she could muster, the alien girl giggled as how entranced he looked, and floated down to his level.

"You liked that, didn't you? Is my hair really that good for your dick, Dick?" She asked in a sultry voice, oozing with love.

"Y-yeah. So... good." She giggled again. It was like with each costume his brain turned more and more into mush.

"Well, we cannot have you reaching the climax just yet. There's one more that you need to see." Pulling her hair away from his hands and erection, the sexy alien stripped the ruined costume and pulled out a spy suit. The costume belonging to the superheroine Spy Widow The princess started putting it on facing toward Robin instead of the mirror. Putting it on putting up some resistance, but Starfire was able to get her arms and legs in without too much issue. Then came the front zipper. The stomach was easy enough, but when it came to her breasts, it got stuck. She would try to pull the teeth together and then pull the zipper, but neither was working. "Rooobiiiin." She softly called out, needing assistance one last time. Not saying this time, the really excited titan leader jumped at the chance and gripped the zipper. With Starfire pulling the teeth together, the two were able to get the entire line closed up.

"So uh... how tight is that in comparison?" He asked her. She took a breath to answer, but that enough was enough to cause the teeth to split, showing a clear display of her cleavage.

"Whew. Tight enough for that to happen." Robin couldn't respond to that for a few seconds, until he told her,

"Kori... there's nothing I want more than to fuck you silly right now." Once again, she giggled, not caring for the zipper as she tore the opening wide open and stripped out out of the spy suit.

"Then take me." She issued. Suddenly picking his girlfriend up bridal style, he quickly brought her to his bed, dropped her on it, and pounced, plunging his dick into her dripping pussy, having wild sex with . "Ah, Holy X'Hal, yes! How did you like all that?!"

"I loved it! Oh god if I thought you were fucking hot before, this made you that much more fucking sexy as hell! You're such a... beautiful supermodel!" The Boy Wonder answered as he rammed into her lower regions.

"Thank you... friend Dick! I am so happy... that I could please you! You are the only one... I want to love! You are the only one... I can be do the sex with! More! I want more!"

"You're so amazing, Star! You're so good! Your body, your pussy, your loving personality... I love it all! I love you Kori! Oh god you're so tight!"

"I-I love you Dick! I can feel it! I-I-AAAAAAHHHHHH!" The Tamaranean girl screamed while climaxing as her love juices sprayed around his dick pumping in and out of her pussy. Robin proceeded to kiss Wrapping her legs around his waist, her hips started to move so that his hard penis pierced her deeper. The rate they were going was so crazy... so intense. She could his dick beginning to pulse, ready to blow. Within moments, he then cummed into her womb, filling her womb with his gooey semen. It felt so hot in there. They moaned their screams into their mouths, hugging tightly with their bodies tensed up for the next minute before loosening up, their lips separating so that they could pant and gasp.

"Next time... I'll do the costumes." The Boy Wonder uttered, wanting to make sure she was pleased the same way in the future.

"I would... appreciate that. Your body... is quite attractive... as well. So tough."

"Heh, thanks." Feeling spent, the couple took a nap on his bed, snuggling close.

A/N: Huh. No reviews for this chapter. I thought somebody would say something here. At least I got a suggestion in the PM. Well, what do you think? Were any of you feeling tight under the collar or pants? Let me know in the reviews below. I'll let you know what it's Robin's turn to cosplay like this.