Inside of your sister

You grunt as you release yourself into Rachel, her pussy quivering trying to gather all of your semen and taking it closer to her womb. She shakes with her own orgasm underneath you as you spend yourself into her.

After you are done, you remove yourself from her and watch as semen pours from her pussy onto the bed. Her eyes come back to her as she comes to realize what you did, at first you think she is going to be mad, but Rachel is not; instead, Rachel looks like she is in bliss.

Her hand simply touches her stomach as she says, "I want to carry your child Big Brother, I'm glad you gave me a chance," she says, laying on the bed spent.

"We are going to repopulate the human race together" she smiles as she begins to fall asleep.

You get dressed and begin to plan the next move of your day.