Apologize in advance for the length (that's what she said)....
Years ago in college my cute little Catholic girlfriend and I fucked like rabbits. We were both relatively inexperienced and experimented. I started to get this hot fantasy of watching her fuck a white friend of mine and shared it with her but after I came I would feel jealous, insecure, guilty etc. so we never did it. After college I was leaving a job and there was a going away party for me. While I was mixing with the various party goers my girlfriend and her good friend were chatting up a coworker/friend of mine (Rick) who was black. My girlfriend's friend wound up making out with him at the place but then we had to go. In the car on the way back to our place I learned that my cute little Catholic girlfriend asked Rick pretty early on, "Is it true what they say about black guys?" Rick replied, "The 'myth' is true, at least for me." We had some pretty good sex that night but that was it.
Years later I got a new girlfriend, really sexy, cute, good family... really hot body. She was even more adventurous. One night I brought up porn and she said she watched it with her ex and liked it quite a bit. So we started renting pornos about once a week. Always high end, good production value, with some kind of story. It was always vanilla sex (in every sense). One night we were in the adult bookstore and couldn't find anything we liked. I suggested that we just go home and she agreed. On the way out she asked "What's that back there?" I told her they were video booths with streaming videos although I had never gone back there. She suggested we check it out and I was game.
Popped in the money and the videos started. Girl on girl...meh.... guy on guy....yuck...pasty, ugly white people fucking....pass. Then we flipped to a channel that had three muscular black guys fucking this petite brunette. One behind doggy style, one getting head from the woman who was thoroughly enjoying herself, and one off to the side stroking his cock waiting his turn. Both our jaws dropped as we stared in amazement. We had never seen anything like it. The guys all had huge cocks, bigger than we had seen in any porno to date. The guy fucking the woman from behind had the biggest cock of all. Now my girlfriend had confessed earlier that it really turns her on to see a guy jack off so that was part of the equation. Neither one of us said anything nor did she make a sound. She just stood there staring in a trance with her mouth open. I asked if she wanted me to change the channel. "No this is fine." No emotion very matter-of-factly. Started running out of time. "Do you want me to put in more money or....?" "Sure." More time past....her stare continued. I was starting to feel kind of embarrassed because I was really getting turned on by the video but I didn't want her to know that.... didn't know what being turned on about this said about me because I'm not black. More time passed. "Want me to change the channel?" Again she said, "No this is fine." That sequence repeated for a while.
The movie ended and she just said plainly, "Ok let's go." When we got outside she just started shaking, kind of bouncing up and down. I asked if she was cold. "No." She continued to shake. "Are you sure I can give you my jacket?" "No I'm not cold. I'm just so FUCKING HORNY!!! I want to just go home and fuck." I was floored because she never talked like that.
In the car on the way back to our place I tried to sneak my hand down her sweats and she pushed my hand away, "Please don't touch me... if you touch me or even breath on me I'll cum right here." She mentioned how big the black guys were and how much the woman moaned with pleasure. I mentioned the guy stroking his big cock and she just shuddered. My girlfriend would get pretty wet when she was excited so I was desperate to see just how wet she was now. Despite her resistance I put my hand down her pants and she squirmed. Holy *******! I had never felt her pussy or any pussy before or since, THAT WET!!! There was a lake in her panties.... a warm glistening lake and her panties were drenched as were her sweats in that spot. We went home and fucked like wild animals.
At work she had a friend who was dating a black guy and only dated black guys. She was young and cute. Anyway, she would talk to my girlfriend about how amazing the sex was with black guys, awesome bodies, stamina, drive, confidence, and huge hard cocks. She begged my girlfriend to just try it once and she'd "be hooked." When my girlfriend told me these stories they turned me on wildly but also scared me because I loved her and didn't want to lose her. Time past and I was now starting to rent gang bang videos with both white and black guys in it (didn't want her to think I had this obsession with black guys fucking white chicks...which I definitely did). I would use a life like vibrator on her when we watched the movies. I would just use mild, uneven pressure when a white guy was fucking the woman, then when a black guy was fucking the woman I would slide it deeper, more pressure, kiss her strongly etc. She usually came within 10 seconds.
I once caught her staring at something in an adult video review magazine that she didn't want me to buy because she said we didn't need it. I came around behind her and she didn't notice because she was lost in a trance. When I asked what she was looking at it jolted her and she said, "Nothing!" But I persisted because I said I caught her staring at one part of the magazine for quite a while. Then she admitted that she was looking at this picture of this video clip with two very well hung black guys who were on a bed with a cute white girl. The woman in the clip was leaning back on her elbows and the black guys had their enormous dicks draped across her shoulders. She just said, "they're soo..... huge." And then she swallowed hard. Sadly to say, I fucked up the situation when I tried to explain my fantasy (didn't even get it out) and it was hitting too close to home because a friend of her coworkers boyfriend wanted to take my girlfriend for a ride on his motorcycle and it freaked me out. I told my girlfriend no way when she asked me. I think she was surprised at my reaction but I was young and well, you don't ******* where you eat. We never hooked anything up and we broke up a while later. Sadly for her, she never went black as far as I can tell because she jumped from our relationship into another one with a white guy who she wound up marrying.
I tried to figure out from that point on why it was such a huge turn on for me. It took me years and years to understand it all. The first parts were pretty easy/straight forward... taboo nature, forbidden fruit, skin contrast, and penis envy. Then I read on some forum about sperm competition and that completed the puzzle. That's why I wanted to fuck her brains out when thinking of her fucking a black guy. For years before I met my wife... despite dating other women in between I would jack off every night to the thought of my ex getting fucked by a well hung black guy.
Before marrying my current wife I shared my fantasy fully with her. No holding back this time. No regrets. I'm older now, more secure, and totally understand my fantasy. She's less adventurous and wasn't into it at first but she's come around quite a bit. It's still not a reality but I keep being patient and supportive. There are times she gets really hot and into it but there's also a fair amount of resistance. It's a longer story than what's above so I'll leave that for another time. Thanks.