For the next two days Monica became unavailable. She didn't want me to kiss her or hug her goodnight, as we were always in the habit of doing.
On the third morning, when I woke up, I went to the bathroom. I peed and walked over to the sink to wash myself. After washing my face, I straightened up and saw Monica behind me in the mirror.
"I hope you haven't had any fun lately without me?" she said to me standing very close behind me.
"You were so cold that I even shied away from masturbating" I replied.
I felt her hand on my penis.
"You're lying. You're standing there ready to cum."
"Every man erects in the morning, and it's not because you were cold and not sensitive," she added.
"So it's time for the lab sample. Put your hands on the sink and stand in a slight straddle" my girlfriend commanded.
"Do you remember the movie Road Trip?" I asked looking into her eyes in the mirror. "A bit like the scene with the prostate milking."
"Just I was getting a manicure yesterday and I'm not going to stick my pretty fingers up your ass!"
"So it won't be like the movie."
"It will be better," replied Monica. After that I felt something wet on my anus, and after a while my sphincter was being pushed apart by some large shape.
I cried out in pain and asked:
"What are you pushing into me?" I almost screamed and straightened up.
"Straddle and thrust, no time for fondling, you have to go to work soon!" growled Monica without stopping masturbating me.
The object in Monica's hand began to slide into my ass, and at the same time, while pushing against my prostate in my ass, Monica intensely massaged my cock. After only a few minutes I could feel the finale coming.
"I'm coming!" I choked out a moment before ejaculating.
She disappeared behind me in the mirror and after a moment I felt my penis in something warm and moist. I looked down and saw Monica. She was kneeling, holding my cum-spurting cock in her mouth and embracing it with her lips. All the time I felt a strong pressure on my prostate.
After several seconds, the waves of spasms from ejaculation passed. Monica stood in front of me. Only now did I see that she was wearing a black lace nightgown. Looking into my eyes she smiled and opened her mouth. She slid out her tongue lightly coated with my semen. The cum flowed out of her mouth and then stained the skin on her chest and her pyjamas.
"I think you've got something stuck up your ass," she said and licked her lips. "Now it's time to wash up and get to work."
While at work I sent a message to Monica: "Very cool wake-up call, thank you."
After a while I got a reply: "If you ever use my toy without permission again, you'll have to do the hand job for the rest of our days together."
I was surprised. "After all, you put it up my ass yourself."
And she replied: "But there's a video on the computer of you riding my toy!"
I felt myself getting hot. I forgot to hide the video somewhere in the folders.
The next few days were rather quiet and peaceful, almost a formal "good morning" and a kiss for going to work or coming back....
Finally, I couldn't stand it and one day after returning from work I said:
"I'm sorry I was playing by myself, you should have helped me with the sampling for the test."
Monica also came back from work, a little earlier than me. She was dressed in a white blouse and an above-the-knee skirt. She looked at me dismissively and replied:
"These are just empty words. You must apologise to me on your knees."
I knelt down in front of her.
"I'm really sorry."
She, in response, lifted one leg and leaned it against the back of the sofa. In doing so, she also lifted up the material of her skirt and showed that she had no underwear on, and to my eyes her shaved pussy appeared.
"Now apologise!"
I moved my face closer to her pussy and started licking and drilling it with my tongue. Monica grabbed my head with both hands and started leaning heavily against me. It didn't take long and I felt the juices of arousal flow out of her pussy. I heard Monica's heavy breathing.
"Unzip your trousers and take it in your hand," she said panting.
Without waiting for anything I undid the fly and button of my trousers, slid them down to my knees along with my panties and started massaging my cock, which was already hard.