As I walked out of the exam room and passed through the waiting room, I realized that the nurse had not removed my butt plug. The motion of walking caused it to stimulate my ass and kept me turned on for my whole walk back to the St. Agatha's dorm. I left it in until right before bedtime. Not wanting my roommate to know anything was amiss, I went to the bathroom and removed it. As I pulled it out, I felt a relaxing sensation and looked forward to the next time I could use it on myself.
I went back to my room and changed into my pajamas -- tight shorts and a white camisole that was practically see through -- and climbed into bed. I lay there a long time until I was sure my roommate was asleep, then I began to run my fingers over my body, pinching my nipples and fingering my clit, thinking about the events of the day. At some point I must have started moaning, because I suddenly heard my name.
"What are you doing, Elise?"
Crap, my nosy roommate was awake. "Nothing," I said, and rolled over to face the wall. A few seconds later I felt her tap me on the shoulder. I rolled back the other way to face her and saw that she was kneeling next to my bed and only wearing her regulation thin cotton panties, no top. Her nipples were pointing right at me and I instantly thought of Nurse Angela and felt moisture spread through my crotch.
"I can help with that," Marie said as she looked at my hand between my legs.
"What do you mean?" I asked.
As I said this, she held up a purple, curved vibrator with a white handle. She smiled at me and turned it on. "Just hold still," she said and pulled back the covers with her free hand. She started to rub the vibrator over my camisole against my nipples, all the while staring at me like I was a delicious snack.
"I've wanted to get you off since the day we moved in together," she said, starting to move the vibrator down my body. With one hand, she lifted the waistband of my panties and slid the vibrator between my legs and slipped it between my pussy lips. I felt an instant charge and cried out "OH!"
Marie quickly put the hand not holding the vibrator over my mouth to keep me quiet. Then she started pushing the vibrator against my clit and sliding it back and forth, getting it wet with my juices. Every few strokes, she would slide it inside me and I would moan loudly in ecstasy, but then she would refocus on my clit. I could feel the orgasm building inside of me as she continued to stimulate me. Finally, I screamed loud against her hand as I came almost as hard as I did at the doctor's office that afternoon.
Unfortunately, Marie's hand wasn't enough to keep me quiet, because suddenly the door to our room opened and our dorm matron was standing in the entry in her robe.
"I've always suspected you two of deviant behavior, and now I have proof. Get some sleep because tomorrow I'm going to tell Headmistress all about this." She grinned like the cat who ate the canary and left the room.
I was horrified, but when I looked at Marie, she seemed almost pleased about this development. She gave me a quick kiss between my legs, then climbed back into bed.
The next morning, I got up and showered as usual and got dressed in my school uniform. I was a little embarrassed about the night before so I kept my back to Marie the whole time. After breakfast, which I barely ate, the Dorm Matron, Ms. Richardson, escorted us to the Headmistress' office. She left us in the waiting room, where the secretary stared at us with disapproving looks.
"Headmistress is in with Father Thompkins at the moment. She'll be right with you," she said, with barely disguised scorn. Just then, her intercom gave a short beep and we heard, "Please send the girls in, Ms. Smith." Ms. Smith just looked at us, so we both stood up and walked into the Headmistress' office.
Headmistress' office was very dark, with a large oak desk facing the door. She sat behind it in her nun's habit, with her fingers tented in front of her face. For the Headmistress of an all-girls Catholic school, Sister Genevieve was very young, probably 30. She wore a form fitting black dress, rather than the tent like dresses you would assume nuns wear. She had enormous breasts that were hard to take your eyes off of when she was talking to you.
