I looked for Kristen all over campus the next day; not really sure why but I wore her littel white panties under my regular guy clothes. We did not share any classes; I was a business major and she told me she was a chemistry major.
My ass was a little sore from the fucking Kristen gave me but I wanted more.
All through out the day I focused on my anal sphincter; opening it up, relaxing my anal muscles. My dick would twitch with excitement with each flexing of the ass muscles but the tight panties kept my dick nice a secure.
I repeatedly check my cell phone for messages but nothing. I went home for lunch and started up my computer to surf for some porn when I got a text fro Kristen. "don't you dare jerk off today go to room 230 in Mcgonigal Hall at 3pm". I was really nervous about meeting Kristen again; My economics class took so long to finish. I walker over to Mcgonigal Hall and found room 230 on the 2nd floor. It was a large chem lab but no one was inside. The room had some lights on and there was an office in the back so I walked over to it. Before I got to the office Kristen came out; she had on a white lab coat which went down to her knees. She looked a bit like a flasher if girls can have that sort of look.
She actually looked sexy with her flip flops and her hair up; she was wearing glasses that made her look serious.
She gave me a smile and then partially opened up her lab coat to reveal that she was wearing the strapon uderneath. My dick immediatly sprang to life. We went into the office; not sure whose office but it was big and faced the court yard of the school. Kristen pulled my shorts off and forced me to lean over the desk. I spread my legs apart already knowing what she had in mind. I could see out the window and thought if I could see them then they could see me as well. We were on the second floor so I don't think anyone actually could see what was going on but I lost all inhibitions when she stroked my cock and lubed up my ass. I wanted her to fuck me there and I did not care who seen. It hurt alot this time see did not give me the gently treatment like last night. I was getting fucked; hard and ruff. I ass loosened up and began to enjoy it. "yeah" kristen said; "you like that cock don't you?"
'Yes" I replied "you are just a cheap whore" she grunted "I love fucking little sissy boys are you a sissy" she asked? "Well?" she hollered? "yes Kristen" I answered.
whack! she hit me with a ruler that she grabbed off the desk.
"call me mistress"
"Yes Mistress" is all I could say before she pulled my head back and stuffed a dildo into my mouth. I had never had a dick in my mouth. I tried to open up but my jaw would not open any more; I began to gag so Kristen took some it out.
"Suck it bitch" she hollered it had a suction base on it so she slammed it down onto the glass top of the desk which enabled the dildo to stand up right without holding it.
Kristen pulled my arms back and placed my hands on my ass checks "spread that ass for me" she hollered I tried to bob up and down on the dildo but it was just to big, it would pop out my mouth and then just slap against the side of my face.
Then someone grabbed my hair and pulled me across the desk. Books and lab papers went flying to the floor. a real cock was shoved into my mouth. It was not a big as the dildo so more of it went into my mouth. I tried to push it to the side of my mouth with my tongue.
smack! the guy slapped me across my head with his open hand.
"watch the teeth bith". he hollered.
The smack put me back to reality. I was getting fucked in the ass and mouth in a professor's office. The professor's dick was getting bigger now I could only get a little past the head now.
"this one is an amateur, Kristen". the professor said.
"he will need lots of training" then both laughed.
"switch with me" the professor said then went behind me. Kristen pulled out of my ass.
"roll over bitch" see hollered. I then sat up on the desk and laid down. the professor took my legs a put them over his shoulders. he spit on my asshole and trust his dick into me. it probably was the same size as the dldo; I could not feel the difference. I looked at the professor; he was older; his hair was a bit grey on the sides. He looked possessed as he banged away at my ass. Kristen then climber onto the desk and lowered her pussy to my face. I did not need any instruction; I began to lick her cunt. It was a lot easier to eat pussy then suck on a huge dick. She came quickly. her pussy was really wet. the professor must have been fucking her before I arrived.
The professor began to bang harder. the slapping sounds of his body hitting mine was getting louder; and he was grunting. the strokes were getting long; he was practically puling out of my ass and then banging all the way in. I could hear them kissing above me; Kristen was jerking my cock; I began to cum all over my stomach and part of my pulled up T shirt when the professore stopped banging and was just pushing his body on to mine.
he was cumming inside me. I could feel his cock twitching in my ass. Not sure how long we stayed there. The professore pulled out of my ass and suffled over to the bath room with his pants down by his ankles. He thru Kristen a towel; she stood up on the desk and wiped her pussy and then the strapon. She then buttoned up her lab coat and climbed down off the desk. Kristen gave me the towel to wipe my ass. "Get dressed and get out of here" she shouted.
I picked up my white panties quickly put them on then found my regular shorts and put them on as well. I grabbed my backpack and left the office. The lab was filling up with students I tried to look down not to make eye contact with any of them. I wundered if any of them knew what just happend to me. I myself was still in disbelief. Going down the stairs I could feel the cum begginning to trickle out of my ass.