...got to pee.

"...got to pee."

Sarah brings her partially deflated dick over to you where you lay on the ground moaning. Your throat feels raw and sore, and you can only look up in helplessness as your younger sister leans over you and puts her dick back on your lips.

"Aww, Doug here I got something nice and warm that will help soothe that throat." said Sarah. She smiles as she lifts you into a sitting position and drags her dick across your lips and face. "You better hurry up and let me in otherwise I'm going to have tell Aunt Abby you wouldn't help me out once she gets back."

Thinking of the horror and **** that your aunt would inflict on you for defying your sister, you grudgingly open your mouth and Sarah squealed," I just knew you love me and would see it my way." In a calmer tone of voice, she says," I just want to fill you up so it looks like your pregnant with my child. Will you do that for me Doug? Will you get pregnant with my child? I don't ever want to lose you, I want you to always be mine, even if i share you with some one else."

Sarah felt like she was about to burst as she was saying all this, Her bladder protested at having had to keep her piss in since the early morning. She wedged her half deflated cock into your mouth and **** it into the back of your throat as she whimpered.

All the sudden you feel warm liquid in your throat, as you realize she is using you as a human toilet. You start trying to push of your sister's thin legs as she grabs your head and forces it onto her cock which is spewing her piss into your mouth and down your throat. She holds you in place for 5 minutes as she does her business forcing her urine into your stomach, mixing it with her prodigious load of cum.

Your sister has packed so much into your stomach you appear to be pregnant with her baby. You abdomen has swollen so much that it has **** your belly button to pop out from being so packed.

Sarah finally releases your head again as you fall backwards onto the floor again. You see her looking at your belly and her cock starts swelling to its full glorious 10 inches. "Doug, You really did get pregnant for me." Sarah says with a glowing smile.

You can't help but just feel sick to you stomach and you: