GF Gives A Welcoming Hand Job To A Friend We Just Met

Me and my gf were out with some friends one night having dinner when we met Steve.  He was a friend of a friend who we had never met and he was sitting next to my gf at the table.  I was sitting on her other side.  As the night went out my gf was getting more and more handsy and I noticed she would put her hand on his knee when she was talking to him at the table.  

This went on for most of the night, there were lots of laughs and stories and everyone was having a good time.  Around the time we were wrapping up and waiting on checks my gf and some of the other girls ran off to the bathroom.  A few minutes later a few of us get text messages and the girls had taken pictures of their tits and sent them to a few of us guys.  Our mission was to guess whose tits were whose.  One of my friends decides to hand his phone to Steve to let him figure it out since he's never seen any of them naked.  When the girls arrived back at the table, I couldn't tell if they were honestly embarrassed that the table guest is now guessing who's tits are whose but I suspected they were quite enjoying themselves and the attention.  

My gf decides to cash in on the opportunity and looks at him with her back arched, making her tits perfectly perky and her hand on his knee, well, which pair do you think belongs to me?  Looking at the phone and taking his time, enjoying every second he finally makes a correct guess.   Then my gf in her infinite slutty-ness says "ok now it's the guys turn".   Steve laughs it off, for now.   The checks arrive and everyone is taking off.  We are all headed back to my friends house to keep hanging out and play some games when I ask Steve if he wants to ride over there with me and my gf.  We get to my car, he hops in the backseat while I drive and my gf in shotgun.  Now Steve brings up the dick pics again, "I'm really glad you didn't make us take pictures of ourselves, I'm kind of shy at first, if you know what I mean".   We all knew what he meant!  

My gf, picking up on the obvious clue, leaning over her seat to look back at him, "so, are you shy now?"  I look back at Steve and give him a nod of approval.  He says "In that case, I guess it'd only be fair since I've seen you half naked."  My gf climbs over and gets in the backseat with him as I put the car in Drive and head out on the road.  

I can't really see what's going on now, they are sitting close together but no action yet.  I keep driving and we are getting closer to our destination.  I exit the freeway and get to a red light and glance over my shoulder.  He is being very quiet and I see she has one hand in his unzipped pants.  I pull into a random neighborhood street and park along the street in a dark, out of view area from busy places. My gf works Steve's jeans down to his ankles and frees his cock.  She starts stroking him nice and slow while I watch with a growing erection.  His cock is about the same size as mine and looks thick and veiny.  She takes off her shirt and her bra and goes back to working his thick shaft.  Steve takes off his shirt and is almost completely naked.  My gf, still wearing her shorts straddles him as she jerks him off so he can suck on her tits.  He starts moaning and she's going faster and faster and I hear her tell him to cum on her tits.  After a bit he says he can't come from a hand job and unbuttons the top button of her shorts.  She doesn't waste anytime and quickly removes her shorts to give him free access to her pussy.  He starts fingering her until she is dripping wet and then he tries to slide his cock in.  She doesn't let him in at first, she starts gliding her slit up and down his shaft and she asks him if he has a condom.  He didn't, and we didn't have one ether.  She agreed to go down on him instead and it didn't take long before she was swallowing his load while he held the back of her head down on his cock.  

We showed up a bit late to my friends party, I just told everyone I had to stop for gas but those who knew my gf knew what really happened.  :)