As everyone left the car Aunt Holly and I hung back a little, and she whispered "that was fucking hot watching you have sex with my sister," in my ear.
"Did you like seeing her cum on my cock?"
"I loved it baby, but it made me a little jealous..." my slutty aunt replied back in a faux-innocent voice. "I could use my nephew's big, hard cock in me again too." Seeing that everyone else was already inside the hotel and out of sight Holly took this opportunity to kiss me hard and press her soft tits into my chest.
"I'd love to Holly, but I'm completely drained - literally. I fucked you, your daughter, and your sister today, I need a little rest before I can go again."
"You fucked Hannah! Jesus Christ that's hot, I wish I saw you guys, could she even take that thing?"
"She took it like a champ and she loved every second of it," I replied smugly.
"Well, she must get that from me," Holly reflected with a devious smile.
"She's definitely a slut like you, she let me strip her completely naked and fuck her outside, anyone could have seen us."
"That's so fucking hot, I want to be there the next time you two fuck."
"Absolutely," I replied, my mind running wild with the possibilities.
"I want you to start slow and sensual, with my daughter's tits pressed against your chest and her tongue in your mouth, but I want you to end it to with you pinning her arms down and fucking her as hard as you can. I want you to fuck my daughter harder than she can take it, I want you to hurt her with your cock. Do you think you can do that for me baby, do you think you can hurt my little girl with your big cock?" I couldn't believe how into this she was.
"There's nothing I'd rather do, especially if you're their to encourage me."
"I'll do more than encourage you baby, I promise you that," she said, slipping her tongue briefly into my mouth again. "But for now, if you aren't going to fuck me I guess I should probably go spend some time with my kids, I can't spend this whole vacation fucking you," she smiled, kissing me again as I grabbed her ass.
"Is that right?" I asked arrogantly, to which she just grinned. "Yeah you go hangout with them for a while I rest a little, then we can have some fun again," I replied.
Holly gave me a devious look, simply said, "Of course, killing two birds with one stone is always a good policy..." and made her way into the hotel.
I stayed where I was so I could watch her ass as she walked away before I went in too, my head filled with images of everything that had happened the past few days.
***
I awoke alone in bed around 9pm to the sound of my phone buzzing. It was a text from Holly, "wyd?"
"Just woke up, wbu?" I texted back.
"I've been hanging out with Cameron, but he fell asleep while we were watching a movie. You should come over, I miss you xoxo."
I was confused as to why she would want me to come over while she's with her son, and in my post-sleep haze I didn't even think about what she had said earlier, or how turned on she was fucking me with Cameron sitting right in front of us. Still, I got up, threw a shirt and pajama pants on, and walked down the hall to the room Cameron and Hannah shared.
I knocked on the door and a moment later Aunt Holly answered, wearing shorts and a loose fitting t-shirt, through which her big tits were very noticeable, but sadly encased by a bra that was, to no one's surprise, a size or two too small for her. I couldn't really be that surprised that she dressed this slutty even when it just her and her son.
Shutting the door behind me, my voluptuous aunt kissed me hard again for a second, and said "I'm glad you came over, I was getting bored in here, especially since Cam fell asleep." Saying this, Holly took me by the hand and led me to the bed, or beds rather, as they had apparently pushed the two beds together to give themselves more room. Much to my disappointment, Hannah was no where to be seen. I asked Holly where she was, to which she replied that she was had decided to spend some time with her cousins Jen and Taylor.
"I wouldn't mind being there" I joked as we climbed into bed, and innocently positioned ourselves so that I was spooning my aunt.
"I bet you wouldn't," Holly laughed as she pushed her ass into my growing cock, "but I think I can keep you entertained, Cameron is a very heavy sleeper." As she said this she turned her head and kissed me, slow and deep this time. I was now in bed, making out with my aunt, with her son only a couple feet away. I knew it was fucked up, but if she wasn't backing down I wasn't going to either.
It goes without saying that I was fully groping my hot aunt at this point, and I slid my hand under the back of her shirt to undo her bra, prompting a slight moan. Once I got it unhooked she finished taking it off, leaving her shirt on, and gently placed it on her sleeping son, laughing as she did so.
Her total disregard for all decency turned me on even more, as did her now free breasts, and I was ferociously making out with her by this point. It was wet, sloppy, and loud, and I could tell that the fact that her son would hear us if he woke up was turning her on. Breaking the kiss briefly, Holly lifted up my shirt and threw it across the room, prompting me to reciprocate accordingly. She was on top of me now, and she slid her shorts off and threw them to the opposite corner of the room. It was clear she was loving the idea of getting caught by her own son.
We continued making out as she removed my pants, leaving me straining against my boxers and her soaking through her panties, fully grinding on each other. Then, to my delight, she began hungrily kissing down my neck and chest, sucking greedily and taking the occasional nip. She kept going lower until she got to the top of my boxers, at which point she gripped my fully-hard cock through the fabric and began kissing and biting it. "You're a bad boy, getting so hard while your cousin is asleep right next to us," she teased.
"That must make you a bad mom then, getting naked and playing with my cock right next to him."
"Mmm you're right baby, I'm a really bad mommy, I'm such a naughty mommy for all the things I'm going to do to you right next to my own son."
"Oh yeah Holly? Like what?"
"Like sucking your cock," she said as she peeled off her panties, which she also placed on her sleeping son with an evil giggle.
Wanting to encourage her, I said "oh yeah? Are you going to be quiet about it so he doesn't wake up?"