No.

Finding nothing but some perv’s fantasy story on choya she gave up. Seeing it had almost been thirty minutes she grabbed a collar and headed for her mother’s bedroom. Walking in, she smiled at seeing her siblings still fucking like rabbits. Her brother was laying down as Ann bounced on top off him chanting just one more to herself.

Going over to the bed Becca slid the collar around her brother’s neck and fastened it in place. “How many times have you both cum?” She asked her sister noticing her brother was a little out of it.

Ann’s body trembled as she orgasmed again. “I lost count for myself after five.” She said as she came down and started to bounce again. “Matt needs one more.”

Becca looked at their younger brother and shook her head. He would need to be better if he was going to please the family the way she wanted. Looking at the pen a wicked smile spread across her face, and she wrote ‘Able to have sex nonstop without negative side effects’ on her brother’s skin. Almost immediately her brother’s eyes cleared, and he grabbed Ann’s hips helping her move up and down faster.

“Wait!” Ann groaned as she started orgasming again. Becca giggled delightedly as her sister became multi orgasmic. After a few minutes Matt gave a loud groan as he pulled Ann all the way down his cock and planted his third load in her womb.

Matt felt his thoughts clear as he regained control of himself. Knowing on an instinctual level that he had bred his sisters he was no longer bound by the breeding stud requirement. Looking at Becca he noticed she held the pen. Thinking he concluded he could try to overpower her and take it or bide his time. Ether way was risking his sister ordering him to never touch it.