This is an interesting thread that made me remissness and feel like sharing.
A couple years ago my gf and I met another couple who were into couples fighting. They both claimed they were devout fitness and bodybuilding competitors and had done some light boxing sparring here and there over the years. Me and my lady worked out with them several times since they attended the same gym and after a while even our workout sessions became semi competitive as me and Will (the other guy) tested strength and endurance against each other as did Rashida (Will's wife) and my gf Biljana. So around Christmas of 2012 Rashida asked us after a workout would we like to come to their place to do some wrestling couple to couple, and maybe a little sensual fun if things went well, and we were all for it.
Will was a big bodybuilder with amazing speed and crazy strength. At this point i had done various martial arts (mainly striking based arts like wing chun and muay thai) for 8 years and never had i seen someone with so much muscle and bulk move the way he did. Rashida was ripped at 140lbs 6'0, and was significantly taller than Biljana at 5'4 but had far less muscle so Billy still outweighed her substantially by about 20-30lbs. Will never told me his weight but he and I were both about 6'0ft and i weighed about 196 at the time and he had to have been 40lbs heavier than me and that was in pure muscle as im sure we were both under 12% body fat.
So since this thread is about your favorite opponent i will only tell about my fight against Will and explain why he was my favorite opponent to this day. Will and I wrestled in trunks in front of our girls on a puzzle mat ring in Will's basement. It was a no striking wrestling match but was a submission style match with slamming and all holds, chokes, submission tactics allowed. Will submitted me three times to my submitting him once. The last time he submitted me he put me to sleep and I was out for several minutes, which scared the shit out of the ladies as the rear naked choke he ended me with was brutal and merciless; Biljana probably saved me from injury when she jumped to pull him off of me realizing i was completely out.
I was frustrated with defeat and told him that next time we face off we should do an extreme no rules no holds bared mma style match, and I assured him things would go different. Because Biljana suffered the same humiliating wrestling defeat i did in her match against Rashida that day, she wanted a less restrictive fight with rashida as well where she could use other tactics asside from grappling.
We met 9 days later to do the mma match and knowing that neither Rashida nor Will were experienced fighters Billy and I figured we could easily overwhelm them once striking was thrown into the mix. Now the part ive yet to mention is that at this point neither me nor Biljana had ever done sexual wagers with any opponent nor had we ever done any homosexual activity before meeting Will and Rashida (well i know i hadnt and i assume neither had my gf). But me and Biljana had both admitted to one another that we felt that Rashida and Will were incredibly attractive. They were bodybuilders like us and did private fighting with us which was basically a fantasy come true, and we said that if ever we did broaden sexual horizons it would be with them, but at the time this was more of an inside joke rather than an actual plight.
So the day of the extreme mma match comes and me and Billy are nervous. We had both done mma before with other opponents and most ended with us having minor injuries (a few times we both had major injuries and twice Biljana was carried away to the hospital for injuries in private fights, i mostly suffered facial injuries likes cuts, bruises, and minor hairline fractures) but Rashida and Will were going to be the most physically powerful opponents we faced, because despite their suspected limited experiences both were seasoned bodybuilders with plenty of strength and power. When me and Will stripped to our boxers and gloves for the fight we made some wagers. The winner of this match gets both the ladies as a prize if neither of them is injured after their match. In addition the loser will be humiliated as the winner wishes. Being confident i might win i quickly agreed, as I thought it would be a sex fantasy come true to have both of these amazing women, and beyond my belief Biljana agreed to the terms as well; she was actually going to let me have her and another woman but i was sure she planned on injuring Rashida to the point where sex with her wouldnt be possible which was why she agreed without hesitation (and for the record the ladies wager was $500 as they had a shit talking match before the mma match and since sex was wagered on the men, money would be placed on the ladies). From the onset of the match Will didnt move or posture like an inexperienced fighter. As we exchanged opening shots his defenses also werent that of a first timer. Still I moved forward agressively testing him with with several snapping leg kicks to the femoral artery, shins, and inside thigh killing his mobility. The kicks threw off his balance as i intended and made his defense sloppy and his counter strikes miss consistently. Then after seeing him wince from a brutal thigh kick I tried to move inside his guard and he blocked me and caught me with a good nose jab. When i went for another thigh kick he checked my leg with his knee which caught me off guard, then he slammed an overhand right into my cheek bone, busting my cheek with a nasty gash right away as i felt the skin break and pain felt like the bone might have cracked as well. I fell to my back and he jumped on top of me, i held him in half guard as long as possible and scissored him tight around the torso, all the while holding him around his upper body to prevent any ground and pound strikes. But he got his legs under him, picked me up, and slammed me neck first into the barely padded concrete floor then pounded my face with a left and right overhand punch to the jaw before my head could clear, i was nearly unconscious and my guard dropped and so did his right elbow as he hammered my fore head and eyes with elbows, thus busting my head with a nice cut and closing my left eye shut, two more elbows to my nose and mouth had me begging for mercy while choking on a combination of my gum shield, blood, and spittle foaming. Then he elbowed my chin which made my head spin and ears feel like they popped, then he grinded and mashed his massive forearm and elbow across my chin and mouth until i began choking violently and he head butted me several times in the cut of my forehead and said he was going to make me his bitch. I begged for mercy and Biljana struggled with Rashida as she jumped up to stop the fight, but rashida grabbed her and wrestled with her yelling "this is what we agreed too". I managed to work my gumshield and fluids out of my mouth and struggled utter to biljana to let whatever happens happen this is a man to man fight.
So after telling biljana to sit down, Will released his forearm from my face and i coughed violently spitting blood up (most likely from my damaged nasal passages). Will the cupped the back of my head and pulled me too my knees, and the room was spinning as i sat there trying to collect myself Will dropped his shorts. I was too out of it to realize it immediately, but he was standing in front of me with the biggest cock i had ever seen (at least 10 inches and over an inch thick, straight up black monster cock like a fucking porn star). He stroked his cock and slapped me until i was alert enough to see him standing in front of my face slapping me with his cock. He grabbed my head and said suck my dick. I said "what the fuck dude", and he kneed me dead in the face. The knee was intended for my nose but i took it on the jaw turning my head right before impact. I was seeing stars and he pulled me back to my knees and put his stone hard python cock on my lips and said suck it and i took as much of the cock as i could and put it in my mouth and something took over me as i sucked it slow and hard until i felt comfortable deep throating as much of his rod as i could before gagging. He jammed his monster as far down my throat as he could and nutted and i didnt know to laugh or cry. I heard Biljana yelling then as my wits returned and her voice came more into focus i realized she was now cheering for Will to slap me with his cock again and Rashida was telling him to take the body oil bottle, knock me out til i'm unconscious then fuck me (sadly I didn't hear Biljana rebutle) which thankfully Will said he was done with me after the great blow job i gave him which made him have more than a few orgasms.
I have never been so badly beaten in mma nor have i ever been made a bitch like this, but this was the experience that changed me and my lady for the better. We became better fighters, better lovers, and more opened minded after that night. We walked away with a much more broad understanding of how sensuality and humiliation can tie into fighting. Not to mention we learned to never under estimate an opponent, and never be over confident before a fight.
I've never had a lust for a man, not back then, and not now. But i did do to an opponent what Will did to me and both me and my opponent were ok with it. Like me this opponent had never done any homosexual activity but he said forcing him to blow me after i beat him bloody and slightly broke his rib (hairline fracture) was the craziest experience he ever had physically or psychologically in fighting. I think it was the fight that made my desire to humiliate and desire to be humiliated in the ultimate way made the fight truly more exhilarating. So i thank Will for what he did to me that day; opening up my mind (as a former homo-phobe I never thought i'd do what i did that day and in some weird way even enjoy it, nor did i think my lady would want to see that but she loves it). I cant say i am gay because i aint into guys assholes and i dont want nothing and nobody bothering mine. I straight up love pussy and will never stop loving pussy. But in certain situations an ultimate wager/ humiliation to an ultimate fight is satisfying on so many different levels.