“Yes. I do.” Emma replies. “I am only your adopted sibling, after all. Besides, in this reality, we have come close to this before.”
Emma starts replying to a memory of a year prior when Jeff walked in on her showering. Jeff got a hardon at that time, and Emma had asked to touch his canine penis. Back then, the on touch soon turning into the beginning of handjob, and almost blowjob, as she was sniffing his member. If it wasn’t for their mom calling for them that day, who knows what would have happened.
Jeff didn’t have time to dwell on the memory, as Emma starts rubbing more on his cock, making more of it come out. In return, Jeff licks Emma’s cheek as he starts massaging her breast. This makes Emma shutter.
Emma roles over on Jeff’s bed, spreading her legs. As she does, Jeff’s cock springs to full attention, ten inches of penis and knot. “I need you in me.” She whispers.
Jeff stands up, walking to the end of his bed. Emma moves down some too, trying to give him the best entrance into her. He lays his hard cock over her feminine lips, feeling how wet she was. “Are you sure? Last chance, or I will go all the way.”
Emma shutters again, the feeling of Jeff’s heavy cock on her lips sending new pleasures through her. “Please.” She replies.
Jeff leans over her, placing more weight on his cock. He then slowly starts rocking back and forth, getting further and further down his penis. Finally, the tip of his cock was at her opening, and he enters. Emma smiles as she is penetrated, as Jeff does his best to be gentle.
Jeff rocks back and forth, going deeper with each thrust. Emma in return, moves her paws over his, reassuring him. As the minutes pass, Jeff gets down to his knot being the only part left not in Emma. He looks up and down Emma, seeing that even her hidden nipples on her stomach were erect. Jeff leans forwards, laying on Emma as she whispers in his ear again. “I can’t hold back.”
“Me either,” he replies as he thrusts one last time. His knot enters her lips and locks them together as his cock and balls start pulsing. He comes in as she bits her own lips not to howl in gratification. Wave on wave of seed fills her womb. Emma could open her eyes as she too came.
As the waves subsided, the two lay in each other’s arms. Jeff looks down at Emma as she opens her eyes again.
“I love you.” Jeff whispers.
“I know.” Emma replies.