My girlfriend's panties become my plaything while her boyfriend is away

I've always been a fan of my girlfriend's panties, and when her boyfriend is away, I take full advantage of it. I love to tease her with my tongue, driving her wild with pleasure. But that's not all I have in mind. I'm a big fan of BDSM and I like to push boundaries. I tie her up, gag her, and play with her pussy with my favorite sex toy. I love to see her squirm and moan as I pleasure myself on her. I even use her own panties as a rope to bind her, adding a kinky twist to the scene. It's a wild ride, but she loves it. The sight of her panties spread out on the bed, the sound of her moans, and the taste of her on my lips make it worth every second. It's a homemade BDSM fantasy come to life, and I can't get enough.