My GF has a sister that's a few years older, and she has no idea that I fantasize about her all the time. My Gf has a nice body, but her sister has crazy thick thighs and a huge ass and tits, like an hourglass type figure that drives me nuts. I've jerked off to her countless amounts of times. She'll sometimes bend over and her thomg peaks through the top of her jeans and it drives me wild.

I play hockey and always feel like my body is getting its ass kicked. I was venting to my gf and she mentioned I should see her sister for a massage since she's a licensed massage therapist. This has literally been my fantasy, but I was never going to suggest it myself since it'd make it seem like I wanted her sis rubbing my body.

I tried to not act too excited and was like "Oh you don't think it'd be weird at all?" She was like "No why would it it's just a massage lol." She texted her sister if she had any availability for me and her sister said she had tomorrow morn avail (which was this am).

I could not believe how excited I was leading up to the massage this AM.

I get to her office, she greets me and brings me into the dark room. She's wearing a white tank top and black yoga pants which is just showing off her body so well, I can already feel my cock grow.

She tells me to undress and get under the covers face up to start and she'll be right back in. I was pretty nervous and I've never had a massage before, so I was like "To my boxers or what do most do?" She said "Whatever you feel comfortable with, but most fully undress."

With that, I got bare ass naked and laid face up on the table, under the sheet. I'm laying there waiting for her and my cock is literally already growing under the sheet, laying up towards my belly.

I look down and the bulge is pretty noticeable and you can see the outline of my shaft essentially. I'm like "Fuck" but at this point there's nothing I can do. She knocks on the door and I say "all set".

She's asking me where I need attention the most, I tell her my neck, lower back, and kind of like my hip all the way down to my foot. She takes some mental notes, turns on relaxing music. I'm laying face up with my eyes closed and she put some essential oils up to my nose and it really started the mood off right.

She's rubbin my hair and head to start, and I notice her body is pressed into my head which is pretty hot. She moves to my neck shoulders etc, then moves the sheet down to my waist, exposing my chest. I was a little surprised when she started massaging into my chest and pecs as I wasn't expecting that. As she goes lower down my chest, her big tits may have as well been resting against my head. My cock is literally throbbing.

She spends a decent time on my arms, then says "Are you okay if I get your stomach?" In my head I'm like "holy shit." And I say "oh yeah sure."

She adjusts the sheet even lower, and she lowered it too low, like by my belly button, and I could fell the head of my hard cock exposed in the air. Quickly and without a word, she adjusted the sheet to cover it back up.

My heart was pounding!

As she's getting my stomach, her hand actually hit against the head of my cock a couple times, through the sheet. I feel like she must have felt it.

She raises the sheet back up, and then works on my legs and hip area on my left side. As she was adjusting the sheet and moving me around, my cock moved in that direction against my upper leg.

As she moved to get more oil, I looked down and you could very obviously see the tent bunched up kind of going sideways across my thigh.

When she moved the sheet to expose my left side of my body, again, my cock was like an inch or less away from busting out.

As she kept getting higher, she'd go under the sheet a bit, and then I felt it, her fingers brushed into my hard shaft. I'm thinking omg she's about to grab it, but she re-adjusted a bit and moved away from that area, she must have realized she just touched "it".

She worked my other side, got my feet, then had me flip over. As I flipped, I sort of pushed my cock down between my legs pointing down.

I'm covered by the sheet and she's getting my head again, all over my back, working down my body.

She moves down to my legs, and then folded the sheet like half way across my body, so my left side of my entire body was exposed. It was hard to tell but it definitely felt like my whole left cheek and leg was out in the open, which meant she could see my hard cock pointing down against my left leg.

As she's going up my leg, she was getting pretty high and inside, but would literally stop like a centimeter before hitting the head of my exposed cock, which means she must have been able to see it.

Then she moved up and was really going to down in my ass and cheeks, like damn it felt AMAZING.

She covered me back up after getting my right leg and then worked my back for a bit, then tapped me on my back and said "Okay, all set, feel better?"

I'm like "Yeah that was amazing!" Which it was, but I also have the biggest blue balls I've ever had in my life. I could not help myself I was so hard, I looked around and found some tissues, jerked off in record time, and tossed them in the garbage.

When I dressed and came back out to pay her, she mentioned I had a lot of knots etc and definitely need more consistent bodywork done. She recommended I come in monthly but said ideally even biweekly.

My GF texts me a bit after and was like "How'd it go? ____ said you were really stiff!" I'm like is her sis teasing me?! Just seemed funny to use the word "stiff" after seeing my stiff cock like that lol.

Anyway I feel like I'm basically cheating on my gf even though nothing happened?