I can't turn her down

I knew this was a bad idea. Sarah was waiting on me expecting me to bring her a drink. She'd definitely notice if I didn't come back. But at the same time, I couldn't get my mind off how great Angela's ass felt wrapped around my cock. This was the hardest decision I ever had to make. But then, I felt Angela's hand on my cock through my swim trunks and the decision was made. "Fuck it. Let's go."

I followed Angela to the water and we walked aways further down the beach away from the main area. There we found a cove that couldn't easily be seen due to how the shoreline curved. "Now, we shouldn't be too long," Angela said as she pulled down her bikini top showing me her big tits.

"Sarah is going to miss you eventually. So, let's get down to business!" She laid down a beach blanket she had brought with her and I took off my trunks showing my very hard cock. "Lay down. I'm going to give you a ride!" I laid down on the blanket with my cock standing straight up. She took off her bikini bottom, squatted over me facing away from me, grabbed my cock, and slowly lowered her asshole onto it. "Uhhhhhhhh, you're so big, John!" I groaned at how tight and warm her ass felt. I couldn't believe that she was already lubed up.

At first, I was content to lay there and watch as her heart shaped ass bounced up and down on my cock while she moaned in pleasure. But eventually, I sat up and grabbed her tits. They were so big and firm and yet soft. "Yes, squeeze my tits, John! I know you kept staring at them!"

"Your tits are fucking amazing, Angela! The only thing I like more than your tits is your tight asshole!"

"Oh fuck, that's so hot!" Angela stopped moving as we realized we had an audience. A muscular, tanned white guy with blond hair, shades, and red swim trunks and a really hot Asian girl in a bikini that was black with a floral print were watching us. It was the girl who had spoken.

"Sorry, we didn't mean to intrude. This is Brad and I'm Ayumi. I didn't know anyone else knew about this spot."

"Oh?" Angela asked. "Were you coming here to fuck, too?"

Ayumi blushed but nodded. "Yeah, we were. But then we found you here. You're so hot and his cock looks so big. And you're taking it up your ass like a porn star!"

"Well, are you just going to watch or are you going to join in? Lick my pussy while I ride my stud's cock!" Ayumi hesitated for a moment and then knelt down in front of Angela. Angela moaned as Ayumi started eating her out and then started bouncing on my cock, again. Brad looked shocked but then, he dropped his trunks, got behind Ayumi, pushed her bikini bottom to the side and slid his cock inside of her. "Oooh, what hole are you in, Brad?"

"Her pussy," he answered as he fucked Ayumi from behind.

"As turned on as she was watching me getting fucked in the ass, you should give her the same treatment!" Brad stopped thrusting as he considered this. Then, he pulled out and put the head of his cock against Ayumi's ass. The whole time, Ayumi hadn't stopped eating out Angela. When she didn't voice any objections, he started to push and his cock made it into her ass. Ayumi moaned loudly but didn't take her mouth off of Angela's cunt. "How's that ass feel, Brad?"

"Wonderful, ma'am! Ayumi usually only lets me have anal on my birthday!"

"It's Angela. Now, fuck your Asian slut's ass!" Brad started thrusting into Ayumi's ass and soon he and Angela started moving at the same pace. "Oh fuck, him fucking her ass is making her tongue go crazy! Oh god!"

I had never had a foursome before. And now a scene wilder than anything I'd dreamed of was before me. I had a super hot MILF bouncing her ass on my cock while a super hot Asian girl was eating her out while getting assfucked herself.

It wasn't long before Angela started to cum loudly. She also raised up too far and my cock fell out of her ass. I realized that was no accident when I felt Ayumi's mouth swallow my cock. "Fuuuuuuck!" This caught me off guard and I filled her mouth with cum. Brad looked shocked at seeing his girlfriend sucking the cock of another man who had just been up someone's ass. But when he realized she was swallowing my cum, he pulled out of Ayumi's ass, walked over to Angela who was still cumming, and shoved his cock into her mouth. I saw his cock was about the same size as mine but Angela had no problem deepthroating him. He fucked her face and soon was cumming down her throat as well.

"I can't believe I just went ass-to-mouth!" Ayumi said after she finished swallowing my cum. "And it wasn't even my ass!"

"I hope you liked the taste of my ass," Angela said with a mischievous grin. "If you boys have another load in you, I've got a naughty idea. Let's swap!"

"Oh god, are you a succubus or something? Okay, I'll do it, but just anal. I don't want to regret this in a few months."

"What do you say, John? Do you want to fuck Ayumi in the ass?"

"In for a penny..." I muttered to myself. I had already cheated on Sarah with her mom no less. "Yeah, I'm down." Angela knelt in front of me and Ayumi in front of Brad as they sucked us hard, again. Then, both of them got on their hands and knees next to each other. I got behind Ayumi and pulled down her bikini top so I could grab her tits. Then, I slid my cock up her asshole. Likewise, Brad slid his cock in Angela asshole. Both woman moaned in pleasure and we started thrusting. "Fuck, you actually like getting fucked in the ass, don't you?"

"Yes, I love it!" Ayumi said. "It's just so dirty and naughty that I feel like a slut when doing it!"

"You're definitely a dirty, anal slut today! Getting fucked by someone else!" This made her moan even louder.

"You hear that, Brad?" Angela asked as she looked back at him. "Your girlfriend is loving getting her ass fucked by another man! You should make me your dirty anal slut to get even!"

"Oh yeah, you're definitely my anal slut MILF!" Brad yelled as he started fucking Angela harder and faster. Not to be outdone, I matched his pace. Soon, both woman were moaning loudly as we pounded their asses.

It wasn't long before I could feel my orgasm approaching, again. Still, I didn't want to be the first one to cum so I tried to think about anything but the tight, Asian, ass my cock was going balls deep in. Tried and failed. I couldn't think about anything else. But then, Angela let out a loud, "OHHHHHHHHHH!" as she came hard. This pushed Brad over the edge and he came deep in her ass.

"Oh fuck! Ayumi, I'm gonna cum!"

"Yes! Cum in my ass!" With that, I groaned loudly and filled her ass with cum. Brad and I both fell back on our asses completely spent. Angela then surprised me by turning around and sucking my cock. Ayumi did the same to Brad. I was too drained and so was he.

"I just realized something," Angela said as she took my cock out of her mouth. She had cleaned all of my cum off of it. "Ayumi didn't cum."

"Yeah, I can't cum from anal, but I'm really fucking close!"

"Let me help you out then!" Angela laid Ayumi down on the blanket and started eating her out. Almost immediately, Ayumi let out a loud moan and started to shake with orgasm. Then, I noticed the time. We had been gone for an hour!

"Oh shit!" I said. "I've got to get back!"

"Oh wow, you're right. Look at the time. It was wonderful playing with you two but we have to get going!" We got our clothes back on and we ran up the beach. But before we got to the main area, Angela stopped. "You go ahead. I can't risk anyone see us coming back together." I nodded and ran on ahead.

Back at the resort, I found Sarah looking for me. "Where have you been?! I've been looking all over!"

"Sorry, sorry, I, uh, was in the bathroom."

"For an hour?!"

"I had bad diarrhea. It must be something I ate. My stomach was killing me!"

"Well, hopefully you got all of that out of your system. I need you to be my partner for volleyball!" With that, she dragged me off to a volleyball net where Lily and some guy was waiting.

The rest of the day was uneventful and we got dinner from food stands at the beach. Then, we all got back in the car and drove back to the motel. Back at my room, I got undressed and took a shower. As I showered, I looked down at the gloryhole but decided to not press my luck. After all, if I was going to be in a relationship with Sarah, I should probably stop fucking her mom. After I showered, I got dressed for bed, and decided to watch some TV before going to sleep. But then, I heard a knock at the door.