My innocent girlfriend agrees to do slutty dares when my friends aren't looking

My girlfriend has always been the modestly dressed, innocent type. Yet she's incredibly cute and has an amazing body underneath her clothes. She's petite and slim but with a considerable rack for her size and a perfect ass. She tends to turn heads while being oblivious to that fact. However I am very aware of it and can also tell that my friends have the hots for her. The combination of knowing that my friends are lusting for her and the fact that I'm the only guy that's seen her naked, have admittedly been stirring some taboo thoughts in my head. And despite my better judgement, the more taboo the thoughts are, the hornier they make me. There is more to this story; it took some time to open my girlfriend up to doing this. Maybe I could write about how this all started another time.

Lately, when my friends are over playing videogames at our place, I've been daring my girlfriend to wear slutty outfits and walk around behind their backs while they're distracted. The first time, I dared her to wear tiny booty shorts and a tight thin top with a black pushup bra. She walked past the gaming room to the living room with her shorts pulled up so the bottom of her ass cheeks were visible, and as I expected, not one of them turned their head to look out the door. I motioned for her to take off her bra in the living room. Honestly, I wasn't really sure if she would actually do it, so I instantly became hard when she took it off, allowing her tits and nipples to press tightly against the thin fabric of her top.

Next, I grabbed her dildo which has a suction cup on the end and stuck it on the wall outside of the gaming room, right by the open door. Not long ago, I would never have believed my always pure intentioned girlfriend would go along with this, but lately she's been surprisingly willing to humor me. She licked and sucked it for several minutes while being only steps away from them. What made the situation riskier was that we never knew when one of them would head to the bathroom or to the kitchen to grab a drink. We were prepared though and I signaled for her to go hide in another room whenever they got up. There were some close calls however, and I wonder if anyone ever caught a glimpse of her ass slipping away in those booty shorts.

My next dare was for her to flash her tits. Her first instinct was to move back towards the living room, but I motioned for her to stand right next to the door, barely out of my friends' view. She pulled her top up, but it was too quick, so I had to instruct her to pull it up and then hold it there for a few seconds. It was extremely surreal and hot to have my friends and my girlfriend's tits in the same field of vision.

Of course, after the thrill I got from these dares, I couldn't help but raise the stakes. Frankly, I suspect my girlfriend has grown to enjoy it just as much as me. Looking back, this last dare we tried was way too risky. I had her put on lingerie underneath her PJs and greet my friends as they arrived. We talked and hung out for a while before the guys retreated to our weekly game night. I made an excuse to leave as usual and made sure they were engrossed in their game before signaling to my girlfriend. I wanted to enjoy this, so I stepped back out of view, relying on only my ears to tell me if someone was coming. I pulled out my cock and played with it while I watched my girlfriend strip out of her PJs by the gaming room door. It hit me hard seeing my girlfriend standing in full all-white lingerie with my friends right around the corner. She looked absurdly sexy in her stockings, a garter belt, a little lace thong, and a lacy bra with her tits all but gushing out of them. She twirled slowly for me while I jerked off. I know my friends would kill to see that view.

The plan was to stop there, but my girlfriend had decided to surprise me. I remember my heart was pounding in my chest as I watched her reach back and unclip her bra, then toss it across the doorway to me, not even checking if someone might notice. Tbh since I couldn't see my friends from where I was jerking off, by the time I would have heard someone get up and then tried to warn her, I'm not sure if she would have been able to hide in time. She then took off her garter belt, followed by her stockings, and finally her thong dropped, tossing each one to me along with her PJs. I'm not sure if I've ever been more turned on than at that moment as I looked at my girlfriend standing completely naked in the hallway. And the fact that she had nothing to cover herself with if someone came out somehow made it even hotter.

She peeked in to make sure no one was looking and then strutted past the doorway without covering herself before heading to the bedroom and smirking at how hard her show had made my cock. Needless to say what happened next