I have an FWB who's got a voracious appetite for dick and also is very adventuresome and likes to bring me what she calls nut busting opportunities, then watch and get turned on as I bust said nuts. I honestly would marry this woman but she refuses because she had a 10 year abusive marriage and refuses to get into anything that could possibly make that happen again. She's often my co-pilot going to the sex club so I don't have to pay very much. Sometimes we get into it there together, other times she heads off to the s&m room which which I'm not a fan of but she gets to indulge and that makes me happy. She knows I'm bi so sometimes her nut busting opportunities could be a guy, and this time it turned out to be her brother.

She called me one week and told me she wanted to bring over her brother to meet me, she said that he was bi-curious and wanted to talk to someone about it. I like these kinds of opportunities because "talking about bi-curious" means I'm getting laid popping a guy's bi-cherry, and I'm sure she knew that.

So Saturday early afternoon she comes over with her brother, he's got a tennis player like body, good looking and is in his very early 30s and has a big muscular bubble butt.That part attracted my attention. I was wearing a t-shirt and and a pair of light grey gym shorts, commando, so I was displaying a nice dick print. All part of the "bi-test" 😁

I invited them in to sit on the sofa and offered glasses of wine which they took me up on. FWBBro was friendly but I noticed he had trouble keeping his eyes off of my dick print. I get 3 glasses of wine hand them out, sit down between them and we started talking in general stuff. He kept staring at my crotch and I was getting a little aroused so you could see my dick print starting to push against my shorts fabric. F WB not missing a thing told FWBBro "go ahead pull it, out it's the biggest fucking cock you've ever seen in your life".

FWBBro seemed a little hesitant so I just pulled my shorts down and let my cock pop out, and rapidly got rock hard, sticking up like an antenna FWBBro just stared at it. FWB said this is what you do, grabbed it and started to lick the shaft and the head which felt damn good and made me even harder, and started my usual flow of precum which she licked off the side as it ran down. She then went, "go ahead, you're bi-curious, this is how you start."

So he reached over grabbed my shaft and he started licking it like she did, he paused and said "wow this thing is not only hot but I can hardly get my hand around it". He then tried putting it in his mouth but unable to because of the girth.

At this point I was absolutely throbbing and really wanted to get to the next level so I grabbed both of them by the hands and said let's go into the bedroom. We went in there and I started kissing FWB and she rubbed up against me, then I grabbed FWBBro and started kissing him. I could feel through his shorts that he was aroused so I peeled off his shirt and pants and continued kissing him, our rigid dicks pressed against each other between us. He have a nice shaped average size dick that was also dripping precum, and I could see his face and shoulders were flushed red with arousal. I pushed him back on the bed propped on his elbows, put his ankles on my shoulders and inserted a finger and started massaging his prostate, causing him to moan and roll his head back. I sensed at this point he was likely very submissive. I added another finger, then added a third which caused him to gasp, then a fourth which brought on moaning and soft cries. FWB, having been in my bed before, was sitting cross-legged rubbing herself. She then handed me a condom and a lube squeeze bottle from my nightstand, which I put on and added a squeeze of lube.

I then positioned my huge cock head right at his pink starfish, leaned over and kissed him during which I pushed my thick veined shaft into him. After a brief pop passing the sphincter I pushed all the way deep inside him.

One of the things I like about anal is I can often get my entire shaft inside, where with vaginal I always have a couple inches left. I had the whole damn thing deep in him.

He responded by crying out, dropping on his back off his elbows and grabbing my legs and crying out "oh fuck oh fuck oh fuck" almost continuously as I probed deep into him pushing thru his second hole then starting deep, hard fast thrusts that shook his whole body.

He reached for his rigid cock but I slapped his hand away saying "I decide when you cum bitch".

Meanwhile FWB was masturbating and breathing hard watching us.

I kept thrusting. It was only a few minutes of relentless pounding, him writhing and crying oh fuck oh fuck when he arched his back, screaming I'm cuming and almost with a bang shot a huge thick rope which splatted on his upper chest, face and the bed behind him. I could feel him pumping against my dick, which finished it for me and I blew a monster load into the condom inside his colon, pumping against his throbs as he filled his ab cum gutters.

We both almost simultaneously collapsed, still breathing hard. He went "oh my god I've never cum so fucking hard in my life that was fucking amazing". I pulled out, pulled off the condom which was heavy with fluid and handed it to hom saying "Look what you drained out of me". He held it up and told me "Holy shit that's one huge condom". I looked over and FWB was eyes-closed moaning and masturbating.

I'm the poster child for the Coolidge effect. At the sight I felt an arousal thrill wash over me, and my hard cock got harder and I swear swelled bigger. I knew I didn't need foreplay now, so I climbed over, with a squirt of lube penetrated her strong and deep just as she liked it. After only a couple minutes of plowing into her she cried out, her body shook and she squirted and orgasmed followed by my exploding into her vagina and trying to drench her ovaries. We both collpsed panting still.

I saw FWBBro was standing watching us stroking his cock. I was still aching with need even after two terrific fucks so I got up, went over, and pushed him on the bed face down showing off that magnificent muscle butt. No fat, just bulging round striated muscle that rippled with each move and begged to be conquered by my cock. Another lube squirt, no foreplay, I grabbed those twin mounds of muscle, pulled them apart and rammed my cock into him as fast, as hard and as deep as I could. He cried out and twisted his torso but I gripped him by the hips and plowed that ass like I was a farmer doing a cornfield. This time I came first, my dick swelling again and my balls clenched as I pumped into him. I hadn't bothered with a condom, so I fired my third load directly into his colon while I felt him starting to soak the bedsheets with his own.

I pulled out and rolled over on the bed next to FWB and laid there next to her, spent. FWBBro stood up for a couple ninutes and said my cum was running down his leg. He then laid down nest to me and we were there for a bit.

We got up, I stripped the stained bedsheets and stuffed them in the washer while they took turns showering. I showered then we went back to the living room with refreshed wine. It's a testament to FWBBro's horniness that he still couldn't keep his eyes off my dick print.

We talked about what we just did. FWBBro said he loved it, never orgasmed so hard in his life. FWB said that's quite the endorsement as FWBBro is a manwhore who constantly has women over to fuck. He said he liked me dominant and him submissive. I told him he needs to hook up with some other quality bi guys and explore positions, etc. to see what he likes and we should hook up again, he felt that was a good idea.

About a month later FWBBro calls to hook up again. In the month passed he hooked up with 11 guys and went to a gay gang bang party. This guy is really a manwhore. He said he likes being a bottom and a submissive, the submissive part a bit of a surprise because he's apparently very dominant with women. I told him about the free use concept and maybe he'd like to try that with me for a weekend since we both seem to have huge appetites for sex.

Part II : the free use weekend that left him so sore it hurt to take a sh*t.