It was supposed to be a fun family getaway, a week in Mexico to celebrate my 18th birthday but it didn't work out that way. My Dad, supposed to have been left alone by his work, was on the phone when my sister Kelly and I got back from our swim.
"You said you could handle this Chuck, I have 3 days of vacation left and you're telling me it can't wait?" said or rather yelled my Dad on the phone. "Why the fuck did you allow that? Does Jenkins know? Fine, you and I are talking when this is over."
"How bad honey?" said Mom.
"Bad enough they're sending a helicopter to take me to the private plane waiting on the runway. Son, I'm so sorry, I hope you had a great birthday yesterday, I promise I'll make it up to you but I have to go, a serious problem just came up at the plant and if I don't go I'm afraid I'll not have a plant to go back to."
"It's okay Dad, I get it, I've had a wonderful time, I'm sure Mom and Kelly can keep me entertained for 3 more days," I replied.
"Well, safe travels back, I'll see you all when you get home," said Dad then he left.
Dad was great at his job, he got things fixed within a day of him getting back then, well, the whole country went to lockdown with the coronavirus. We weren't exposed but at the beginning, any outside travel was locked down and all 3 of us were sent to a secure hotel two states over to be monitored for any signs of infection.
Two weeks was the initial estimate but they talked about extending it, we were pretty pissed. The suite they put us in was pretty basic too, far from the luxury resort we'd stayed at in Mexico. We each had our own queen bed but Mom's was only separated by a partition and Kelly and I were just a bed stand apart.
For me, being a week in Mexico away from my porn and pretty much nightly masturbation was tolerable but being stuck in the same room with my Mom and Sister who just wore the vacation bikini most of the time wasn't helping.
I know, they're my family but I was 18, red blooded horny young man and at that point, boobs were boobs and they were both blessed with an amazing pair. I did all I could to keep my erection at bay, could never get off in the shower so I'd try quietly jerking off in the bathroom when everyone was asleep. Our food and everything was no contact delivered too so there wasn't even a cute maid or anything to look at either.
"You know young man, I know I'm your mother and Kelly is your sister but it's perfectly healthy to look. You stare at the painting behind me every time we talk. I'm sorry we don't have more to wear than bikinis but none of us expected this. Don't be embarrassed, have a good look, let your boner go away then we can just relax okay?" said mom with a smile. I felt my face going bright red.
"I, uhm, I'm sorry, I didn't mean to stare," I stammered.
"We both take it as a compliment, if we can excite our own family then that must mean we're very sexy."
"Yes, you are, very much. Oh, fuck," I hadn't meant to say that out loud. Mom just laughed.
"Relax sweetie, go wash your face, lunch will be here soon."
I took Mom's advice after lunch and didn't hide the fact I was staring at their breasts any chance I could. Usually, I'd get hard if I let my mind wander but could usually make it go away. After two hours straight of being erect I was actually starting to hurt and no amount of jerking off was getting me even close to cumming. Mom noticed me sitting uncomfortably as we watched a shitty movie on tv.
"Are you okay sweetie? You look like you're in pain."
"I, I don't know. It won't go away," I said, trying to hide it again.
"Well so much for the chill pills," said Kelly.
"Kelly, what are you talking about," said Mom.
"I was trying to help him relax around tits so I spiked his soda with two of Dad's Mexican xanax. I know you guys go visit the pharmacy every year, it's cool," replied Kelly.
"Honey, your Dad doesn't take that, show me what you gave him."
Kelly went into Dad's bag and brought out a bottle, the writing was in Spanish.
"You actually passed Spanish in high school right? What does that say?" Said Mom, pointing at the label.
"To help a man relax and enjoy."
"Not even close, it's Mexican herbal Viagra, your Dad can go for hours with this stuff. How many did you give Marcus?"
"Just two."
"Fucking hell Kelly! These things are potent, usually one half is all you need. Honey, have you tried masturbating?" she said to me.
"Y... yes."
"Go and take a shower, come back in just your towel okay."
I did as I was told, even tried rubbing one out in the shower but was still like steel when I got out. I stood tenting my towel when I got out, I couldn't hide it and could only look down. I couldn't see Kelly.
"Honey, there's something you have to do and you're going to have to listen carefully okay. You're going to have to have sex to get your erection to go down, since your sister caused this she's going to have to take you, if you don't, you run serious risk of causing permanent damage to your penis."
"But she's my sister, we can't!"
"Son, you'll have to put that aside for now. You know your father and I are pretty open about sex, I know he's had 'the talk' with you, Kelly is on birth control so it'll be fine. Just go to my bed, she's there waiting, have sex with her until it goes away okay?"
"Mom, what the fuck! You're telling me to go do something that everyone
everywhere says is wrong!"
"Would you rather your penis was never able to get hard again ever?"
"Well no, but..."
"Then go. Close your eyes and imagine it's that hot waitress you were drooling over or something."
Mom pulled my towel away and practically marched me to her partitioned side of the room. Kelly was there on the bed on all fours, naked and already wet, her shaved pussy just glistening with her juices. I looked at mom, hoping for some last minute 'ha, got you, now go take a colder shower you perv' but I figured Kelly wouldn't have been naked for that. Mom stayed long enough for me to get on the bed and get behind her then she walked away. Kelly looked round at my cock.
"Well shit, just glad you're not small, I'll at least enjoy my punishment."
"Not helping, this is all your fault anyway."
"So fuck me and get it over with, you can be mad at me later."
I'd only been with one other girl before, it was over pretty quickly but we had both enjoyed it. I put it out of my head that it was my own sister before me on all fours and guided my cock inside her. She felt amazing, her pussy was warm and moist and tight and I knew if my cock hadn't been aching I'd not have lasted long. I held on to her waist as I thrust into her, she was moaning and clearly enjoying my cock, seeming unfazed by the fact that I was her own brother.
After a while we both had a sheen of sweat on us, Kelly was urging me on and collapsed forward as she climaxed, I felt her pussy tighten around my cock which made me push harder and Kelly began moaning louder, almost chanting 'oh fuck yes' as I kept pounding. When I still hadn't cum after her second orgasm she made me stop.
"Sorry, getting a little tender, get on your back," she said.
I did as she asked and watched in delight as she mounted me, her naked breasts on display to me for the first time and watched them sway and bounce as she rode me. I didn't last too much longer, when Kelly came a third time I groaned and pushed up to her thrusts as I exploded deep into her pussy.
"Holy fuck, felt like a gallon of cum you just sprayed into me," she said as she caught her breath.
"That was amazing, thank you," I said, looking away.
"Hey, don't be getting all weird with me okay, it's just sex, I caused this, I'm sorry I really am."
"You're not weirded out that you just had to fuck me?"
"If I was I'd have made Mom call a hooker or something. I liked it, you have a nice cock and you made me cum. You're uh, still rock hard though huh," she said, slowly grinding my cock.
