It's not his mother

Correcting the zipper of his suit and hoping that his hard-on wouldn’t be too obvious, Adam reached the airlock just as the door to it began to open after the two ships had had their cabin pressure equalized, and waited for his mother to appear from behind the door as it slowly slid to the side.

When the door was finally fully opened, Adam received a bit of a shock as he realized that the person now walking through the passage connecting the two ships wasn’t his mother.

Instead, the delectable figure sauntering up towards him belonged to his sister, and he could see that Cindi was sending him a big smile as she drew nearer.

Adam was stumped by seeing his sister, partly because her presence came as a surprise to him and partly because of what she was wearing. He had grown accustomed to his mother wearing a jumpsuit similar to his own when they would first meet up, and only later drive him mad with lust by changing into some skimpy outfit which left preciously little to his dirty imagination.

But Cindi was walking along dressed in nothing more than a pair of high-heels with platforms at the front of the sole and a bikini that consisted of a turquoise material, the top of it being made up of a the usual arrangement of strings around a pair of rectangular patches which barely covered her nipples, and the bottom of a similar rectangular patch that was no small that her pubes would have been visible if not for the fact that her pussy was evidently smooth-shaven.

All in all, Cindi’s appearance was enough to make her brother stifle a groan as his cock began to harden again at the sight of his buxom sister being clad in practically nothing, particularly so since the patches covering her pussy and nipples were made from a material that wasn’t just flimsy and thin, it was practically see-through as well.

“Adam!” The busty teen greeted her brother as she reached up to him, being dwarfed by him not so much because of their difference in height, which was almost negligible, but because of his much greater bulk.

“What’s the matter, aren’t you happy to see me?” Cindi asked her brother when he didn’t respond to her greeting.

“Sure I am, sis, it’s just that I’m a bit surprised, that’s all.” Adam responded, and hugged his little sister.

“Oh my,” Cindi thought as she was caught in her brother’s embrace and got to feel his cock press against her shapely stomach, “is that his… no it can’t be!”

“So sis,” Adam let his sister loose again, “what are you doing here? I was expecting to see mom.”

“It’s just a four-week run, so she thought that I might take it instead,” Cindi told her brother, “she figured that I could use the experience before I take over for her full-time.”

“Fuck, it was his cock. He’s hung like a horse!” Cindi told herself as she looked down to see that the thing which had been pressing against her belly was without a doubt her brother’s hard dick. From the considerable bulging going on at his crotch, Cindi guessed that Adam must have a bigger dick than any man she’d ever seen before.

“Stop it,” Cindi told herself, “has he noticed that I’m checking him out?”
Adam had noticed, but he was doing much the same to her, taking in the way in which her DD’s were straining against the tight containment of her skimpy top and how her nipples were poking its taut fabric.

“Well, glad to have you aboard.” Adam told her, and reflected for a moment about how true that was.

“Thanks,” Cindi responded, tightening her grip of the small bag that she had brought along, “mom and dad said that I can use the Falcon’s rec room…?”