Bi guy 49 here. Oh yeah and a bear to boot. This happened some years ago and back then I was a slut, and I will gladly admit that. Having said that, I was the bottom and I like it that way. 
Although I was not on Grindr, i was on a similar site.
I had for some time been looking for a guy to fistfuck me. Obviously he couldn't have hands that was too big. I mean, I did want to be able to walk properly after that, so I passed on a few guys. But I never let them leave without a blowjob. I mean, so sue me for loving to suck cock and from what I have been told, I was pretty good.

Then about a month goes by without a prospective lover looking for someone to fistfuck. Out of the blue, I get a message from a guy in Oslo, who wanted that ans so much more. He felt that his boyfriend running around was ruining their relationship. So, I said sure, come on over. I gave him my adress and on the dot the next day, he came. He had driven for over 2 hours to meet me.
We had agreed that I would meet him naked.
I was fine with that. Not the first time.
Although I was shocked to find that he was someone I already knew, I still let him in.
He was also stunned when he realised who I was.

I asked him, if he was uncomfortable with me, he said no. I told him that I would do whatever he wanted me to do, except scat and wet.  Even though we had been friends in college, we never knew about our kinky selves.
We were both pretty straight in college.
Anyway, I told him to strip and be naked with me.
He acquiesced and stripped. I could tell that he had showered just shortly before he came to me.

I like that in a partner. I gingerly leaned in to kiss him on the cheek and he turned his head quickly, so I ended up kissing him on the lips.
Apparently that was all it took.  He just looked at me and just asked if I was willing to be fucked by him. I said yes, obviously and then we went to the bedroom.
We laid down and he started to kiss me and I loved it.
He started to kiss my lips and then my nipples. He then took my cock and started to jack me off before he went down on me and as I came, he sucked me dry before he licked my cock dry. Don't get me wrong, I love getting my dick sucked. 

After he did that, he told me that he did it because he wanted to fuck my brains out, as well as fistfuck me.
By now, I was just in a daze. He could have called in a football team to fuck me bareback and I would have done it, no questions asked.
He was liberal with the lube, thank goodness. It turned out that he had a sleeping monster between his legs. And when it woke, I was in for the fuck of a lifetime. 
He let it gently slide into my butthole and away he went. 
First slowly, then like a jackhammer.
My ass was seriously pounded. And when he finally came, I got a warm feeling. He was into some seriously weird things, as he pulled out and started to rim me.
He was licking my ass clean. 
After he was done lickiing me, he took a piece of bubble gum and kissed me.
Was I any good,  I asked him. He said that he had secretly wanted to nail my ass in college. So yes, I was apparently everything he wanted. 

Bare in mind that I was still sort of recovering after that jackhammer pounding. 
I told him to fistfuck me if he wanted to.
Again he lubed up and carefully started.
The first two fingers went in easy, as did three and four and eventually all five. Then he got all of his hand inside me. I was getting high from this, seriously.
He started and after a while my ass was literally numb and I loved it.

Somehow he was able to activate his phone. And as he was fistfucking me, he called a friend and he had apparently been in the car with him. He had apparently been waiting this whole time while we were busy. 
He came into the bedroom naked and while my friend was fistfucking me, he asked me casually if I wanted to suck cock and I just nodded. I had a fist up my ass and a cock in my mouth. He even deep throated me to the point of me almost choking but I was so high, for lack of a better word, that I was fine with it, as bizarre as that might sound.
He ejaculated and I swallowed everything. Afterwards he bent down and kissed me.
My friend changed out his fist with his dick and I was like a junkie getting his fix.

I ended up being fucked to the point of exhaustion. They left a little over a hundred pounds on my nightstand before they left, with a note asking for a repeat in the future. They also included a phone number for me to call, when I was ready.

I am more than well aware of how this all sounds, but it's true.

I am sexually attracted by my brand new men Puma boots. [TRUE]

I can tell you all about it. But what you need to know first is that I get really kinky shemale fantasies when I'm on coke. I'm a 25 M and these boots make me feel like a hot trans. Something about their form and shape.

I really feel sexual attraction to the boots. I do believe drugs have a lot to do with the sensation. So, anyone wants to explore this kink hole with me?

Maybe not the most flattering pic, but could come with more if anyone interested.

Well, first things first, I'm a fat bi guy in my late 40's, my bi boyfriend is a couple of years younger than me and he's a skinny guy to boot. We're both naturists, and so are most of my "in-laws". His dad is also bi, and my confession is that I mistook my bf's cock for his once. I mean, it was a simple mistake to make at the time. You know when you're underneath a table with a big table cloth that makes it a lot darker, and there's more than a couple of cocks in front of you. This happened at a barbecue with my bf, his dad, and some other guys, that I knew were either gay, bi or straight but gay on the D.L. But that's cool with me, either way. Anyhoo.
And as I was under the table I saw what I thought was my bfs cock. As they're similar in size, I didn't think of it.
And so, I started gently rubbing it, before I kissed it and to suck him.
He didn't move an inch while I was sucking him. I used my tongue to make him cum quickly. And when he came, he locked my head between his legs so I couldn't move. That made me swallow everything. Not that I minded a bit. I love semen, mine and my bf.
And afterwards he just let go. As I emerged from the table, my bf's dad got up and approached me.
My bf had no clue what had just happened. My bf's dad took me aside.
And told me that I had sucked him instead of his son. Now, he didn't mind that, as he told me that he thought I was pretty good.
But I should tell my bf about what had just happened.
I nudged my boyfriend over and told him then and there. I thought he was going to dump me then and there, but he didn't.
In fact, he said that if I wanted to, he was more than willing to share me with his dad. He knew that his dad had been single for a while.
He asked his dad if he wanted to hook with me, he could but he wanted to watch.
I thought that sounded kinky, so I liked the idea. It's not like it was my first rodeo. Lol.
His dad looked at me and slapped my fat ass so loud, that he got everyone's attention. It didn't hurt or anything but the amount of attention was unusual.
One old guy looked at me. He yelled to my bf's dad, let's call my bf's dad Andrew: Hey, Andy, so you're gonna do him?
And without even as much as a warning or hint of embarrassment, he said, smiling: Yeah, I intend to fuck him so hard he won't be walking properly for a day!
The old guy quipped back: Well, if anyone can do that, it's you.
That got the whole party laughing.
But the old guy wasn't finished.
You should do him here.
My bf's dad looked at the old guy: I think that would not be a good idea. Gil, give him another beer.
He then took me by the hand and told me to go to his bedroom and then weight for him, as long as it was cool with me, with both of us. My boyfriend told me that it was cool with him.
And so, I went to his bedroom and waited.
Shortly after, my bfs dad came.
He commanded me get in bed. I had never really had any thoughts about kissing him, but I just went with it.
As we were making out, he put some
lubricant on his hands and started to massage me. He commanded me to lay on my stomach and just relax, which I did.
When he drove his fingers into me, I thought I just died and went to heaven.
But that was nothing, compared to what came next. After he was done fingering me, I could tell he was horny.
He applied some lubricant to his cock and gently spread my legs and teased my hole a little bit before he drove it in.
And he wasn't kidding. At first, he was gentle ish and as he got harder and harder, he fucked me harder and harder. I was completely awed by him.
My bf was good in bed, but not like this.
And my bf's dad was true to his word, he fucked me so hard, I literally couldn't walk properly for a couple of days.
When my bf came to the bedroom, he asked if I was up for round two, which I was.
By the time he was done, I was also done.
I managed to get out of bed and walked while leaning to the wall.
When I got outside, the party had died down a bit, but the old guy was still there.
He asked me: Looks like he fucked you real well. Did you like it?
I replied: Hell yeah! I'd gladly do it again.
Then the old guy grabbed my nuts gently, and said: Welcome to the family.

I never did anything with the old guy, except let him fondle me occasionally. He turned out to be a ex of my bf's dad.
Thanks to my bf and his dad, I've had plenty of threesomes.
This arrangement has been going on now for the past four years. I love it!