Your Sister

You were sitting at home one day when you heard a knock at your door. You walked over and opened it only to see your little sister, Jen. Jen was only twenty one but looked only eighteen, she had a large set of D breasts and a beautiful round ass. To top it off she had beautiful blonde hair, which you loved. If it wasn't obvious you had a crush on your sister but of course you never acted on it.

"Jen! What a great surprise what brings you by?" You said happily only to see Jen look up at you sadly,

"I got some bad news bro." She said looking at you visibly upset,

"Come inside." You said and lead her inside. You took a seat on you lounge chair as Jen sat on your couch, "What's wrong Jen?"

"I-I got that disease, that cum addiction." Jen said wiping her eye,

"Oh Christ Jen I'm so sorry." You said sincerely, "I know that me and my team are working on a cure for it but as I'm sure you are aware we haven't made any progress on that."

"I know that's not why I'm here." Jen said looking at you in the eyes,

"Well what do you want than Jen, just name it." You said looking at your beautiful sister,

"Well you and I both know what I need now at least once a day. I don't have a boyfriend or anything and I don't want to become some whore on the streets sucking off guys just to live." Jen explained,

"Of course I wouldn't want that either." You said sincerely,

"I know you are registered to be a donor as it were, basically what I'm trying to say is can I get the cum from you? I just trust you more and it would make me feel safer for it to be coming from you." Jen said looking at you hopefully,

"Jen, I-I don't know." You said shocked but already feeling aroused at the thought,

"Please John! I know that it's weird but I swear it would only happen until I find someone else. I'm begging you here don't say no." Jen begged,

You looked at you sister and saw the fear in her eyes, "Of course Jen I will help you." You said,

"Thank you John, thank you so much." Jen said and ran over to you giving you a hug. Suddenly Jen whispered into your ear, "Now give me your big load." You looked at Jen confused and shocked and after a moment Jen jumped off of you looking shocked at herself, "I-I don't know why I said that!"

"It's the first stage Jen, the first stage of withdrawal makes you try to seduce people in the attempt to gain access to their semen. You're early in stage one since you still have control over yourself." You explained and tried to reassure you,

"Oh god, What do we-How do I-" Jen started to panic,

"It's alright, you just need to, you know, get your medicine." You said standing up.