Jenny and Sarah were my best friends in high school. So when it came time for graduation, we naturally wanted to do something special together. We decided on a girl's night in at Sarah's house. Her parents were away on vacation so we had the place to ourselves.
It was a Saturday, and both Jenny and I came over early. Southern California is pretty hot in the summer so we'd planned a day of relaxing around Sarah's pool.
Jenny greeted me at the door with a big hug. She was wearing a skimpy bikini with a sheer coverup.
"This is going to be awesome, Ellie!" she said, giggling. "Sarah's changing in the guest bath down here. Why don't you dump your stuff in my room and use my bathroom to change into your suit!"
"Sweet!" I said, and took my duffle upstairs.
I'd been in Jenny's room before. It was more of a suite, really. She had a king size bed up against a bay window overlooking the ocean. Her walk-in closet was the size of my bedroom at home.
I'd never really been jealous of her though. Jenny was super fun to be around and often bought dinner or took us on fun outings - all on her parent's dime!
I tossed my bag on the bed, took out my suit, and headed for the bathroom. It was also huge, with a jetted-tub, a large stone shower with one of those rainfall shower heads, and a floor to ceiling mirror on one wall.
I admired myself in that mirror as I changed. I'm about 5"5' with dark brown hair that falls halfway down my back. My breasts are on the smaller side but my nipples tend to show through stuff, like this bathing suit. I'm quite slender with strong legs and arms, thanks to all the tennis I've played.
I thought my red two-piece showed off my figure nicely. It was also on the skimpy side, but the bottom still covered my bit of brown bush and it clung nicely to my boobs. Not that that mattered to the girls, or so I thought.
Down at the pool I noticed something was different about Jenny and Sarah. They laughed and giggled, like they had some inside joke. They also touched each other more than usual. I didn't really think much about it at the time. We were all close. But somehow, they seemed closer.
Jenny wore a tight-fitting blue and white suit that matched her tiny body. She wore her blonde hair short and had a round face with an upturned nose.
Sarah's figure is much fuller. Her black suit held her big boobs in nicely. Her auburn hair fell down her back. Her skin had a beautiful, milky white tone, and she was covered lightly in freckles. She was the more serious of the two, though right then both were laughing and splashing each other.
I jumped in and joined the fray. After a while we all got out and laid in the warm sun.
"Would you put sunscreen on my back, Sarah?" Jenny asked.
As Sarah grabbed the bottle, Jenny unhooked the back clasp of her suit and lay down on her stomach. Jenny took her time rubbing in the sunscreen, venturing down the sides of Jenny's back and her boobs. She followed up by applying it slowly to her legs, the back of her arms and even her inner thighs. It was almost sensual.
"Do me?" Sarah asked me, holding up the bottle.
"Of course!" I replied, getting up off the chaise lounge and grabbing the bottle.
Sarah also laid down on her stomach and undid her suit. I was less massage-like with my application, but I got her covered.
"Now your turn!" she said and surprised me by sitting up, letting her suit fall to the chair.
"Whoops!" she said, without grabbing the top.
I couldn't help but look at her breasts. Despite all the years we'd known each other, this was the first time I'd seen them. They were much larger than mine and were firm, with nipples sticking straight out.
I quickly looked away and laid back down.
Sarah took her time applying the sunscreen to my back. I resisted undoing my suit and Sarah didn't ask. At one point one of her nipples grazed my back as she leaned over me. It was pretty disconcerting.
When she was done, we all laid out in the warm California sun, hopping back in the pool a few times (with suits on) to cool off.
Dinner was pizza, ordered in. We laughed a lot as we talked about school ending, our plans, boys, and the summer ahead. I noticed at one point Sarah reach over Jenny's shoulder to pour some more soda into her glass. She rested her left hand on her shoulder and I almost thought I saw her kiss her ear as she poured the drink.
After dinner, we moved into the living room and streamed some shows we'd been watching together.
When they were over, Jenny suggested we move up to her bedroom and get ready for bed. They exchanged a little sly look, perhaps another inside joke?
"Sounds good. Mind if I change first?" I asked, a little shy for some reason around these two.
I brought my bag into Jenny's bathroom and changed into new panties and a long night shirt.
When I emerged from the bathroom, I noticed that the bedroom was cast in the soft glow of candles. Jenny and Sarah surprised me by going into the bathroom together and closing the door. This was getting strange.
They came out a few minutes later giggling and holding hands, dressed like me in t-shirts, though they reached only to their waists, showing pink panties on Jenny and black on Sarah. Jenny's dark tits easily showed through her t-shirt. Sarah's large breasts actually bounced, her large tits and areola moving up and down inside the fabric as she walked.
"So, what gives with you guys?" I asked as they sat cross-legged with me on the bed.
"Huh?" Sarah asked, still giggling a little. "What do you mean?"
"What do I mean?" I asked. "You guys have been acting weird ever since I got here. Touching each other, that sensual way you put on sun screen, and then I thought I even saw you kiss Jenny's ear, Sarah."
Sarah and Jenny stopped giggling and exchanged a knowing look.
"I guess we'd better come clean," Sarah said to Jenny, taking her hand.
Both of them turned to face me.
"You know neither one of us has been with a guy, right?" Jenny asked.
"Um, right. Me either," I said. "Not yet."
"But that doesn't mean we aren't sexual," Sarah said. "I mean, we get horny just like everyone else, right?"
"Again, yeah, I guess," I said, not knowing at all where this was going.
"So... have you ever thought about being with a girl?" Sarah asked, letting go of Jenny's hands and gently caressing her palm.
I paused for a moment, watching Sarah's hand.
"I mean, well, the thought had crossed my mind," I said, "but I've never seriously considered it."
"Well," Jenny said. "We have. Considered it, I mean. Well, maybe more than considered," she said, now looking into Sarah's eyes.
I felt myself blush and hoped that it didn't show.
"You mean," I said, lightbulbs going off in my head, "that you two have been with girls... sexually? Like a lesbian?"
They both looked at me and nodded.
"Wait," I said. "You've been with each other? You've had sex with each other?"
Sarah took Jenny's hand again and smiled, saying, "Yes, Ellie. We've had sex together, and it's been wonderful!"
Talk about mind blown. Here I was looking at my best friends, who'd kept a secret from me - a big one!
