It was night over the Legion of Superheroes HQ. Tomorrow would be Jon Kent’s birthday. He had just taken a shower and was prepared to hit the hay. He didn’t know what his fellow teammates in the Legion were planning for him, but he figured it was going to be crazy. Drying off, he put on his pajamas and figured he’d check out his phone before turning in.

He got a message from Kara, the one and only Supergirl.

supergorl: hey bday boy, how about you come visit me here in space? i got a surprise 4 u!;)

He couldn’t believe her. She didn’t look like your typical auntie, blonde and beautiful she could have passed for his big sister, but she acted like one alright. Always up to some trouble.

supedupbadboy: fine aunt kara, i’ll come along. but this better be quick!

supergorl: oh dont worry. just the best kind of surprise for my FAVORITE little nephew!

Jon sighed. He saw her coordinates on his phone, it was a distant uninhabited solar system far away from this one. He didn’t know what she had planned for him, but he was bored. Maybe she’d give him a laugh.

Opening up the window, Jon flew out into space. Being a Kryptonian meant more than just being invincible enough to take down anything that went up against them. It also meant they could literally go up into space unharmed. Unfortunately that didn’t extend to common sense, as apparently Clark had inherited all of that in the family. The same could not be said for his aunt Kara.

As soon as he was up past the cloud cover and out of Earth’s atmosphere, he was in the darkness of space. Normal people would have been ripped to shreds. For Kryptonians, it was just a mild inconvenience. That soon changed to nothing as his body fast adjusted and then he flew to that solar system, wondering what was up.

He wondered where Kara was.

“Yoo-hoo! Over here!”

That was her alright. He didn’t know how close she was, she was Supergirl for a reason and could yell from light years away. But he knew the direction it was coming from. Sighing, he followed the direction of it. Here he was a superhero of great power hanging out in outer space in just his jammies, because his auntie was playing a prank on him right before his birthday.

He was right near the core of this solar system. Right by the sun flaring gold, he felt stronger than ever. A nice touch to being a Kryptonian, figured she would want to hang out around here. But as soon as he saw her, he couldn’t believe it.

Kara was naked. Jon was speechless, he could see every bit of her, her slim and slender hips, her long sexy legs, and her naked tits hanging out. At first he wanted to believe that this was just a prank, but the smile on her face, and the way she was narrowing her eyes at him, there was no mistaking her intentions. This close to the sun, his natural Kryptonian genes were fully powered up from it. Including that he was getting rock hard for his smoking hot naked aunt.

“Come on Aunt Kara, you called me all the way out here for this?” He tried to sound as disgusted as possible, but instead he was so distracted by her naked rack and her fine erotic shape that he just sounded weak and unsure of himself.

“Of course!” she chirped back at him.

It would be a thing she did. She used to tease and bully him all the time when he was younger, she gave him his first exposure to porn and laughed at him when he got hard. It didn’t end there either, at mission briefings she would make sure to beside him in the most revealing outfits possible. Everyone there used to think it was just that they were teammates, she was looking out for her little nephew, but in reality, she would do it to watch him fidget. Crossed her legs, put her hands under her breasts to put an emphasis on them, all of it. She knew what she was doing.

And it had worked. As soon as he was away from her, he was really hard. Whether there was a mission coming up on the dot or if things were going back to business as usual, he’d have to find a secret place to jerk off. It never took too long and somehow that only made it worse.

“I see you came prepared for the occasion too,” she said, giggling. He tried to cover his boner but the jig was up.

“It’s only because we’re so close to the sun!”

“You’re telling me that if you were squaring off against Darkseid, you’d tell have a chub in your pants?”

“Well, uh...”

“Don’t you want to put it in between these titties?” she said, massaging them nice and slow. Jon was staring speechless, he had always fantasized about these big boobs even if just because she liked teasing him, and now he was seeing them naked like he always wanted. Not to mention her nipples were big and pointing right out.

Looking at his stupid face, Kara knew she had him. She jiggled her tits in her hands, with how big they were it was very easy for her, but she decided she’d clinch the deal. Tweaking her erect nipples in between her fingers, she moaned softly before she pinched them hard and shrieked deeply. The sound startled him out of his trance, sending a jolt of sexual pleasure that went right up to his brain.

“You must have had an idea of why I called you out here,” she purred. “And I didn’t go to you this time. Come on, it’s just you and me out here.”

Jon’s dick was flaring up bad in his pants. He didn’t have any place to sneak off to this time, and seeing this naked beauty of a woman tempt him so openly, he didn’t want to either. He wanted to fuck his blonde bombshell of an aunt and that was exactly what he was gonna do.

He flew on over at her with a speed that surprised even her. He knocked on over into her and then he was grabbing all over her naked body, her back, her big bubble butt. While he was doing that, he was sucking all over her big tits, clumsily licking going all over them before he started full on eating one at a time only to go to the next one. Kara held the back of his head and growled in deep satisfaction while moving her thigh on the monster in his pants.

“God you’re so fucking big...” she purred as he was snacking on her teats. Her nipples were getting harder in his mouth and the powerful effects of the sun had made her just as horny as he was. Having it for real, she was shaking, it was all so good.

Even if he was going crazy with it. Kara could tell he hadn’t done this sort of thing too often or maybe never did it period. Jon was currently devouring one of her teats while frantically dry humping her leg like a stupid dog. Grabbing his face she kissed him deeply, and pretty soon the both of them were tonguing out hard.