I wasn't feeling very good, so I left work early, I had already finished most of my work anyway, so it was no big deal. I arrived home and noticed another car in the driveway, it belongs to my girlfriends friend Amy.
I walked inside the house and was surprised not to find my girlfriend Beth, or her friend Amy. I was just about to shout out Beth's name when I heard something that sounded like moaning. It was coming from our bedroom, so I snuck up quietly to the door.
The door was ajar just enough for me to look inside, I couldn't see the bed directly, but I got a perfect view from the full length mirror.
My jaw dropped at what my eyes beheld, there on the bed was Beth and Amy, both naked.
Beth was on her back, and Amy was sitting between her wide spread legs. She had a vibrator inserted deep inside my girlfriends cunt.
I stood there frozen, watching, was this really happening. I had always goofed around with Beth, trying to get her interested in maybe trying a threesome, every guys dream.
Beth is so sexy, petite, tight, athletic body, she jogs and swims, so she stays in great shape. She has small perky tits, 32B, with nipples that just begged to be licked and sucked. A perfectly flat stomach, and butt cheeks that I just love to grab and squeeze, and a small little bush.
I always knew Amy must have a great body too, and now I could see for myself. 5'4", short Red hair, her tits were bigger then Beth's, I guessed about 36C, with the pinkest nipples I have ever seen. I couldn't see her ass right now, but I know she has a great one.
I knew if they found out I was watching, it would be over, so I didn't move, I was almost not breathing, I had to stay quiet as a mouse.
Beth was moaning louder now, the vibrator was buzzing very loud, she must have turned it up to full speed, and Amy was sliding it in deep on every thrust.
My cock was aching, it was so hard watching and not being able to do anything, but I couldn't take my eyes off of them.
Beth was cumming now, she was screaming, "oh god, I'm cummming, fuck my cunt, ram it in, fuck meeeeeee".
Amy pulled the vibrator out of Beth's cunt and brought the vibrator to her mouth and sucked it inside, licking Beth's cunt juices off.
Now Beth said " it's your turn" , and Amy laid down on her back just as Beth had before.
I had no clue what was about to happen next, I figured she would use the vibrator on Amy now. How wrong I was. Beth crawled up between Amy's thighs, lowered her head down and started licking Amy's cunt.
Amy placed her hand on the back of Beth's head, she was obviously enjoying being eaten out by my girlfriend. I know Beth has a very talented tongue, but I never thought I would see her use her talents on another girls pussy.
I watched as Beth reached up and pinched Amy's nipples hard, causing Amy to squeal in pain. She then did the same to the other nipple.
Amy was thrashing with ecstasy, Beth must have latched onto Amy's clit. Amy was moaning louder now. Amy's ass lifted up and I watched as Beth rammed a finger up her tightly puckered asshole .
Well that did it, Amy started cumming, and Beth just kept on licking, while continuing to finger her ass.
After Amy's mind blowing orgasm, she sat up and the two girls kissed, Amy was tasting her own juices off of Beth's face.
Amy told Beth she had a surprise that she thought Beth would like. She reached down beside the bed and grabbed her bag. I was stunned when I saw what it was that she pulled out. It was a double-headed dildo, it was huge, 18 inches long and thick.
She placed it in Beth's tiny hands, it looked even bigger with her holding it. Beth said, " we are going to need a lot of lube". Amy pulled out a bottle of lube from her bag and said " lets do this".
They faced each other with legs spread wide. Amy lubed up the dildo and guided one end towards Beth's waiting cunt. Beth reached down with her fingers and spread her cunt lips apart as Amy pushed one end of the dildo inside.