My friend of almost 20 years called me over to her house a week ago cause she was feeling bored and lonely. We've always been that typical best friend type between a guy and girl. Furthest it ever went was a drunken kiss one night maybe 10 years ago. So when I went over I expected nothing to happen other than to hang out as normal. It was 10pm and my wife was home sleeping and her husband was working midnights. I get over there and she's already on the front porch feeling tipsy so I join in and have a few drinks myself. After about 2hrs of bullshitting, laughing, and her telling me how lonely she's been and misses a warm touch I tap myself out and say I gotta go. We went to give each other our usual hug, but this one felt different. For whatever reason we both just kind of clinged on a little tighter. Both rested our heads onto each other shoulders and kinda stayed that way for maybe 30 seconds. I say to her that this is nice and she agrees. I start to rub her back while we're still hugging and she returned the favor. This seemed to go on forever when it may have only been a couple minutes. Both of us rubbing with harder pressure. I notice I'm starting to get as hard as a rock and my only thought was oh fuck stop while you're ahead. Except my body wouldn't let me stop. At this point she noticed too because she started to push into my solid member and I heard the slightest of moans. We both said this can't be happening. We both knew that. We said it a few times but we just couldn't stop. This was the turning point when I was like shit something is going to happen. Still in the hugging motions I grabbed her hard and squeezed and her moans intensified. Rubbing my hands up through the back of her hair and gripping, I pulled her head back and moaned into her ear and bit her neck. This little game of hugging, rubbing, and moaning went on for a few minutes before our lips met and we started kissing and nibbling on each other. Eventually it turned to full on making out. She whispers to get out of the light and pushes me off the front porch to the side of the house where it was pitch dark. She grabs me as she falls backwards onto the house. I have her pinned and we start making out fiercely. I move my hands between pinning her hands against the siding to grabbing her ass and lifting a leg up and holding it while still making out. That's when she whispers between the moans "I want you so bad". At this point we are both hot and sweaty and going at it. I start grabbing her harder by the ass and working fingers towards her pussy. I was shocked when she pushed it away but continued to be extremely turned on and hot. I tried again and she grabbed my hand and brought it to her mouth and started sucking 2 of my fingers which drove me insane. My cock couldn't have been any harder and she realized that. She reached down started stroking it through my pants. It was so hard it almost hurt. Finally I aggressively whipped her around so she was facing the house and grabbed her by the neck with one hand and pulled her back and started kissing her ear. She forcefully pushed her ass into me and started grinding my rock hard member. Still with my left hand around her throat, my right hand slid down her tits, passed her stomach, and right to her warm pussy. She was wearing flannel pajama pants with no underwear. My intention was to just rub her through her pants but my finger went right through the opening and into her wet pussy. After rubbing her clit for a minute she turned to face me and pulled my hand up and started licking herself off my 2 dripping wet fingers and sent them right back down. This time I inserted them and she fell to the concrete in a squat position. I fell with her and finger fucked her aggressively. Hard. Fast. She started screaming on the inside and then suddenly she came intensely. So hard she actually squirted all over my pants and shirt. I've never experienced a girl that does this and it was one of the hottest things I've ever done. We both took a holy shit that was amazing moment before she stood me up and dropped my pants and started to give me the sloppiest blow job I've ever had. I've never had a girl not use her hands the entire time. She was running one hand over my chest with her nails and using the other to play with my balls and I was going insane. Just as I was saying I'm about to cum she stopped and said not before fucking me. She stood up and turned to face the wall and stuck her ass out. I came in and slid my dick between her legs, but not inserting it. She took one hand between her legs and started rubbing her pussy with the tip of my dick before sliding it in. It was at this moment the thought rushed over me that I couldn't believe this was actually happening. I'm fucking one of my best friends of 20 years. Our rythem was in sync as I thrusted and she grinded into me. She fell down off the wall and was still standing legs straight. Hands around both her ankles. I grabbed on to her waist and started fucking as hard as I could till she exploded all over my dick in ecstasy. She fell all the way to the ground this time and caught her breath. She turned around and slid my cock into her throat and started to make me throat fuck her which is another thing I've never experienced. I never expected this girl I've known for so long to be this way! She went from throat fucking to holding my cock as far in as she could and gagging on it before going to a straight blow job while using to both hands to stroke me at the same time. Both my hands up high on the wall my legs start to shake. At this point the thought crosses my mind where the fuck am I going to come. Not even seconds after that I shakingly say I'm going to cum over and over and she just keeps sucking. Everything tenses up and I had to have released the biggest load ever as she took every bit of it down. Even licking my shaft up and down afterwards to clean me up. I fell to the ground next to her and we both caught our breath for a minute and kinda wowwed at what just happened. The next thing she said was "I finally got to taste you". We both just chuckled, stood up, and pulled our pants up.

We have both had this sexual tension towards one another our entire lives but the timing was just never there. We eventually just dug into the best friend nest and have been that way ever since. We figured the time would never come as we were both married. We still flirted with each other and always wondered what would have been if we hooked up in the past. There was an exchange at one point where we said if either of us cheated it would be with each other but it was always considered a joke because of our close friendship. We never expected it to actually happen but then it did. We discussed it and as guilty as we both felt we also both agreed it was the most exhilarating sex we have ever had. The passion. The lust. The closeness. We've both only been married for less than 4 years now so I think after 20 years of tension it was something neither one of our spouses could compete with. We both agreed that this should never happen again and to take this to the grave. Yet even though we both agreed this should never happen again we both also jokingly agreed that if we cheated on our spouses it would be only with each other again. It's been a week now and we have both come down from the experience and even though we have the guilt we both are comfortable in knowing it will never surface again.

I don't condone cheating. In fact I've always been fully against it and said there's no way in hell I'd do that. I've been cheated on twice in past relationships and I know how it feels. Now I'm in that pool of cheaters and I do feel guilty, but I can at least say it wasn't with some random girl I met at the bar. I feel comfortable in at least knowing it was with the girl in the same situation with the same mindset. She told me to just blame it her on (even though we're telling no one). I told her that we're both equal assholes here.