My wife has a friend that is a very large woman. I would guess her to be in the 350 to 400 lb range. She has a daughter that is large also. She is 17 years old and is probably close to 300lbs. Nice enough women but very physically unattractive. Jen the daughter is our babysitter. My wife and I both have jobs that require travel and odd hours. This sometimes creates a need for Jen to stay over. We have enough bedrooms so she has her own at our house. I know that you all know where this is heading, and that you've 'heard this one' before, but this is true and I don't know why I let this happen. My wife is beautiful. Blonde hair, blue eyes, curvy hot body. This girl is, um, not. Reddish brown hair, brown eyes, very fat. Anyway, she has walked in on me changing, or popped her head in the washroom while I'm in the shower to 'ask me something'. I figure, she is at the age where she is getting horny and wants to see a cock. I let it go. On one occasion I was in a horny mood and started jerking off in my ensuite and didn't close the door. My bedroom door was shut. I heard her open it and walk in. I thought I would give her a show (bad idea I know). (I also know this is where you have stopped believing me, but it is all true!). Anyay, she peaked in and I was facing away from her but you could see a side view of me in the mirror. She stopped in her tracks and watched. I was actually turned on by being watched and ended up cumming while she watched. She inhaled sharply when I did then she quickly left the room. Again, I thought I was giving this horny teenager something to masturbate to later. No harm. Well the next week I needed her services for 3 days in a row. Mainly for the morning so she stayed over. My wife was in Calgary for 8 days working. No lie, I woke up in the middle of the night to Jen sucking my cock! I was groggy and it felt great but I got my senses and stopped her. She was naked. Lots of roles and for a fat chick she had small tits. I told her it wasn't ok that this was happening. She was pleading with me to have her. To let her suck me and fuck me. I just kept saying no. For some reason my cock stayed very hard and was pulsating. She could see this and kept grabbing at it. I again sternly told her to stop. She begged and was crying. She was saying that no boys want her. And she just wants to know what it feels like with a real penis. I asked what she meant be a real penis. She explained that she has an assortment of rubber ones. She even commented that one was almost as big as me. I think she was trying to suck up. Lol. I have no idea what she said or what I was thinking, but evil took over and I agreed but on my terms. She was bouncing on the bed like a kid. All excited. I said, suck my cock like you were before". She did. She was actually very good at it. Took me deep in her throat. I was enjoying this but I figured, if I'm actually doing this, I'm going big or going home. (No fat pun intended). I told her to get on her hands an knees and I entered her from behind. Wow was she tight. Her pussy looked big from the outside, but guess that was due to her size, but her hole was tight! She was wettter then I had ever felt. I fucked her like she was a slut. She came a few times, and actually wet my legs when she did! I was looking at her fat ass and her little asshole. I pushed my finger in her ass while I fucked her. She was moaning and writhing. I spit on her ass and pulled my cock out of her pussy and pushed it in her ass. She screamed a little but it was muffled in my pillow. I worked it all the way in and fucked her ass as hard as I could. She took it and loved it! Go figure. I was getting close so I told her to suck me again. She actually said,"but it was in my ass. ". I said, "ya? Suck it anyway" she did. (I'm evil and going to hell for this). I told her she was to keep sucking until I said stop. She did. I came and came. I don't know if I've ever cum so much. I was pumping into her mouth and she just kept sucking. She was swallowing and sucking. I told her to stop. And pulled my cock out of her mouth. I then told her, nobody can ever know. She agreed and thanked me. Kissed my cheek and went to her room. I don't know why I did that. She's an ugly girl. She's only 17. I'm happily married to a beautiful woman. I am guilt ridden and at the same time, I smile when I think of what haoppened!? I'm actually very arroused telling this story now. Does this make any sense to anyone?