"I haven't cum in a month so prepare to swallow lots of stinky cum!"

"I haven't cum in a month so prepare to swallow lots of stinky cum!"

You attempt to protest but can only mumble out unintelligible sounds around your sisters rapidly hardening cock. Sarah starts thrusting lightly as her cock begins to swell inside your mouth. "Oh this feels great." Sarah exclaims. "Auntie, do you think we can do even more after this? I think this is going to be a huge load but I'm pretty backed up."

"Sure we can sweetie," cooed your aunt "after all we got a nice cocksleeve here for our pleasure. Now **** your brother further down on your cock, I promise it will make it feel so much better."

You had been struggling just with the 3 inches that your sister already had in your mouth from the sheer girth of it. Whenever you feel your sisters hands grab your head and pulled towards her while thrusting with her hips. She **** her entire 10 inch dick down your throat.

Aunt Abby, "Wow, sweetie you can see your entire cock bulging his throat out. Keep it up, I'm finally leaving. By the time I get back I want to see your cum covering him. Claim him as yours so you get a personal cocksleeve anytime you feel like it."

Sarah was too far gone to notice your aunt step out. She kept thrusting her turgid member down your throat. You started feeling light headed and like you wanted to vomit but nothing would come as your sister kept thrusting her cock into your throat, otherwise known as her new cocksleeve.

"Oh Doug, get ready I can feel it in my balls, this is going to be massive," moaned Sarah, " Im going to have a lot of fun with you from now on, and I will let you suck down my cum any time you want."

You feel your eyes burning with tears as you realize your to weak to stop this from ever happening, even against your younger sister. As your vision starts start closing in, Sarah pulled back so just the head of her cock was in your mouth.

Sarah," Im going to cum soon, you better swallow it all or I'm going to have to think of a punishment." she says with a slightly demented grin. After letting you catch your breath for another second she thrust her hips forward forcing her cock back down your throat even though you tried pushing off of her.

"Doug, get ready its almost there." Sarah's pace was frenetic as she slammed her cock in and out of your throat. Your eyes watered, wishing this was over and that your sister wouldn't be interested in more after getting off. Sarah started groaning "Uhh, here it . . . CUMS." as you feel her shaft and head expand in your throat and gut.

With a scream you feel the first load empty directly into your stomach. It felt like a hammer blow to your gut as it shot out of your sister's cock. Pulse after pulse of cum flew out of her cock as you stomach began to bulge with the sheer volume of cum that your sister was unloading into your stomach. After cumming for what seemed like an eternity she began pulling her cock back out. You could still feel it spurting as her cock came back up through your throat and into your mouth.

Her cum was like a flood even after having cum for so long directly into your stomach. You felt it filling up your mouth as you desperately tried to swallow, in a vain attempt to save yourself from your sisters potential punishment. Sarah's cum was too much and you felt it start to leak out of your mouth onto your chin. She saw this and smirked, " Doug! Now it looks like we get to have a lot more fun. I still have quite a bit of cum I need to give you. Don't worry though, I'm still going to let you finish with this load since you seem to be enjoying it so much." With that she pulled your head forward and held you there while she unloaded the last of her cum for this current round.

Sarah,"Hmm, now what should we have as punishment for such a bad boy, who couldn't even swallow all of his little sister's cum whenever she has only ever been nice to him? Seems awfully rude Doug for you to not do that for me. I thought you loved me." She finally pulled her cock out of your mouth fully and let you fall back over.

"How did you like getting all of my stinky cum? Don't worry though brother, I love you and have a lot more of that for you. Although now I really feel like I. . . "