Temptation

Without another word you quickly go in to your sisters room and close the door behind you.

As you turn around you see that she moved back to her desk with her chair facing away from you.

"Andrew, I'm so glad you decided to join me tonight." she half moans.

"Sis what's going on with you?" you pretend to be ignorant of what you discovered snooping earlier.

As you finish asking her she turns to face you leaving you completely speechless. At this point her Clit is almost 4 inches long and your sister isn't even using her pussy anymore. Instead she is sitting on the flesh colored dildo as its leaking batter down her chair.

"At first I considered it only a fantasy. As hot and tempting as the bimbois looked I would never want to give up my pussy. As time went on though, more and more of my friends at school slowly started to get infected. They told me how good their ass feels with stud and bimboi cock filling it up. I would sit at lunch and they would talk about how much better it felt than having their pussies fucked by their boyfriends. I kept my cool for so long and spent every night for the last month imagining just what it would feel like. Earlier this week while I was watching a cute blonde bimboi get fucked by her daddy I saw an AD promising everything that I wanted."

As she was explaining this her riding became more intense and you were hypnotized by the sight. She was slowly jerking off her newly forming cock in front of me while licking the batter off of her fingers. She was relishing every moment.

"Why are you telling me this? Why didn't you tell me to go back to my room just now?"

Allison laughed quietly as she continued to ride the corrupted dildo. "I saw you sneak into my room after dinner. I watched you log onto my laptop and at first I was scared that you would tell mom and dad, but here we are. You kept your mouth shut. I also went to your room earlier and watched you jerk off your own cock to bimbois. It made me my clit so hard watching you through the crack of my door. Once I realized you knew what was going on, I knew you would come to me." She said with a smile.

"I know its incredibly hot, but we can't just let ourselves be infected." I said unsure of my own words.

"We both know you don't really believe that. I can see your boner through your pants. Are you jealous of my batter filled ass right now? Are you jealous that my clit is almost as big as your cock and its only going to get bigger?"

you start panting at the lewd display and subconsciously lick your lips.

"I won't **** you to do anything but I'm going to be changing all night. Even now my tight little bimboi ass is aching to be filled and soon this dildo won't be enough. I'll give you the choice that I've debated this entire time."

As she says this she slowly bends over in front of you with the dildo in her ass and she pulls it out with a noisy plop. You see her asshole now a few inches in front of your face as she resumes jerking off her now hard bimboi cock.

"At least smell it before you tell me you don't want it." She whispers clearly seeing the conflict on your face.