My sister pranked me whilst I was in the jacuzzi, saw me completely bare and made me fuck her wet crack

I was just trying to take some time off by spending time in the jacuzzi but my stepsister thought that it would be funny if that babe pranked me whilst I was taking a bath. I wasn’t very cheerful because of this of course, and not only was my jacuzzi session interrupted, my stepsister saw me completely naked! I mean, she saw my dick and everything. This is awkward, I really don’t know how this situation can get better. Then the little slut started talking about how my dick is huge and all sorts of nonsense like that. I couldn’t believe that this babe was saying this, it was definitely wrong. And you won’t make no doubt of what happened next. My horny step sister took her bra off! I got to watch her tits, and goddamn, I can’t say that she didn’t look smoking. I completely lost myself when that babe did this and I allowed her to bend over towards my pecker and put it in her mouth. I didn’t even notice what had just happened and that babe was already engulfing on my cock like it was a lollipop. I had no idea that I would love the feeling of my stepsister’s mouth on my cock. The wetness of her mouth completely lubed up my cock and I enjoyed each second of it and soon sufficiently I wanted more. I really couldn’t be satiated by this and she just opened a Pandora’s box by engulfing me off. I was quick to retaliate as I gave her some oral and it was so wrong of me to do this but I have to admit that I enjoyed licking her pink snatch with my tongue, kissing and engulfing her little clit. “I need it! I want u to fuck my pussy!” I got on the pool side and my bare sister put her hips above me and slid down on my cock. My dick went into her pussy and it didn’t have any trouble going in since she was so wet from the previous dick sucking and snatch licking. My sister started riding me reverse cowgirl style next to the jacuzzi and I enjoyed her wet pussy surrounding my dick. This babe was bouncing on it like a bouncy castle and I was so confused with emotions of the one and the other pleasure and disgust. It was so wrong yet so right and in the end, I came all over her slutty face and she swallowed all of my cum off her mouth.