Steven held Cassey's hips firmly in place as he rammed his thick cock back and forth in her tight little pussy and fucked her from behind. At the same time Cassey tightly gripped the sides of the box to help steady herself against her brother's assault on her pristine body.
It was an incredible feeling for both siblings as they fucked like two wild animals in heat. Steven's muscles flexed and sweat poured off his buff body as Cassey's massive DD's bounced uncontrollably around. The two lustful siblings no longer cared about the ramifications of their 'taboo' coupling, they only cared about fucking each others brains out.
"Aaaaaa!" Cassey yelled in pleasure as waves of the most intense orgasm of her life rippled through her young body and her pussy tightly gripped her brother's massive fuck tool.
At that instant Steven yelled out, "Oh fuck yeah Cass! I'm cuuuuummmming!!!" and pulled his little sis firmly against him as he shoved his throbbing cock deep into her. His dick began to spasm and streams of his hot cum began to shoot past her cervix and diretly into her untouched and very fertile womb.
As their orgasms finally ended and they enjoyed the 'after glow' Steven pulled his still semi-hard cock from Cassey's pussy. "Pop." A strand of white cum briefly hung between his rod and her smooth pussy lips before breaking apart.
"God that was incredble." Cassey admitted with a smile.
"Yeah it sure was. Thank you." Steven replied looking over her flawless body.
Without waiting he quickly put his clothes back on, kissed her and went back up stairs.
Cassey then pulled on a skintight jumpsuit. She could feel Steven's cum running down her legs inside of the jumpsuit. The thin material did not absorb the moisture very well so it just wet the inside of her pants and her legs.
As she walked back out she felt the little hairs on the insides of her legs being pulled out as she headed back to her cabin and jumped into the shower.
There was very little dirt on the ship, the climate control kept the ship at a nice temperature so nobody sweated much. Water had to be recycled so showers were kept to a minimum. Everybody got used to this.
As she got out of the shower she saw her mother standing there.
Her mother asked, "Why did you take a shower at this hour?"
She didn't want her mother to find about what she and her brother had just done.
Cassey thought quickly and told her "A swamp gurp had hit her in the head with poo." Cassey tried to cover herself with a towel.
Sarah shook her head not accepting her answer and said "What were you doing? I'm a doctor and your mother. Just last week I caught Bruce masterbating in his room. He tried to hide what he was doing even when I told him it was natural."
She looked her daughter up and down and said "I think maybe it's time you and your brothers got married."
"Don't you think you should get yourself a new man while we're at it?" Cassey said with a laugh.
"That could be nice. My sex toys are not doing it for me like they used to."
Cassey was both repulsed by her mother's statement and curious about her sex toys and asked "W-what sex toys?"
"Go to your room and I will meet you there." her mom replied. |