She loved sex. She lived in a high-rise apartment and masturbated freely. The other day, she bought a special vibrator online. It could be attached to the floor or wall, and it was electrically powered and could move freely. It was called "Kunekune-kun." One Sunday, after her morning shower, she immediately tried out the vibrator. She attached the vibrator to the window leading to the balcony at waist height. When she moved it a little, it began to wiggle and squirm just like the real thing. She began to feel embarrassed just looking at it. Still, she took off her bathrobe and got completely naked. She had just gotten out of the shower, and steam was rising from her body. As she approached the window, the steam fogged up the glass. She placed her hands on her breasts and began to massage them slowly. Rubbing her nipples against the window glass, she felt a chill and an involuntary tingling sensation down there. With both nipples pressed against the window, she rubbed her private parts against it. The cool sensation was irresistible, and her body, already hot from the bath, became even more excited, sending electricity running through her body. "Oh, my nipples are getting hard... that feels good..." She began to play with her clitoris. She couldn't help but shiver... and it gradually became harder. I slid my fingers along her slit. ...Slippery... Slosh, slosh, slosh... The window glass was already dripping wet with her love juices. I poked her clit, slowly peeling back the clitoris's skin. "Oh, no, no... if you do that, I'll come... oh, oh..." Her clit hardened, turning into a big bean and swelling bright red. I slowly inserted three fingers inside. Slippery, slippery... Slosh, slosh... Her body became hot as she made lewd squishing sounds, and her hips started moving from side to side on their own. Slimy love juice dripped from her slit down to her crotch, making her anus wet and shining. Looking in the mirror, I saw her face and body, consumed by lust. Finally craving my cock, I attached the Wiggle-kun to the windowpane and slowly inserted it from behind. It was completely absorbed into her wet pussy, dancing inside her. "Oh, it feels so good... my hips are moving on their own... oh, oh, oh, oh, oh, oh... I'm coming, I'm coming..." Because she was attached to the windowpane, her naked masturbation show could be seen through the glass from outside the house. The thought of this excited me even more, making me wetter. Her love juices and sweat dripped onto the windowpane as droplets. I turned the Wiggle-kun's switch to high. Her hips began to move lewdly on their own. "Oh, oh, oh, oh, oh, oh, oh, oh... it feels so good... insert it deeper and thrust deeper..." she cried out involuntarily. Her moans echoed throughout the floor. Having become a nasty bitch, she came five times in this way. Apparently, masturbating like this is an everyday occurrence in her life. I wonder how many times she will come in this shoot. I'm really looking forward to it.