Not so funny now(how I ended up trapped in a BDSM dungeon)

For this prompt I'm looking for partners to roleplay a scene where I am forced into serving as a bdsm slave after mocking it.

I'm not 100%percent set on the plot and will throw out one idea that I had that leads to me being trapped.

My idea feel free to edit or change up elements for this idea I'd be male and my partner female.

In this prompt I'd been seeing a girl for months and eventually I get the privilege of meeting her father, mother and sister, this was extra exciting for me because the parents were active professionals in the BDSM scene they occasionally took on ients for fun in their private home dungeon and had various places in our area people could rent and play, I wasn't really up on the whole BDSM scene but it seemed on the whole rather fake to me what's the point in whipping a person as a punishment if that's a thrill it's not punishment right?

Meeting my girlfriends parents you never would have guessed them to be part of anything so erotically charged really Keith and Angela seemed like your everyday couple you might bump into in the shops or  out for meal. Keith is a taller male about 6'1 and Angela is 5'7 roughly they both had respectable bodies for a couple in their mid 40's and let's just say Angela was certainly where their girls got their bust from bit of them had more than a handful but Angela had beach balls for sure.

Anyhow after a spot of dinner Keith and Angela talked some business sitting in their front room whilst. Myself Kate(my gf) and Hollie the slightly younger sister  sorted out the washing it was after all polite after Angela had gone through the effort of making it, So we join them in the front room and they are discussing their work as Kate flashes me a smile.
"Hey Mum and Dad did you know Troy doesn't really get the whole scene he thinks a lot of it is sort of fake and contradictory"
Both parents looked slightly shocked by that admission by my oh so loving girlfriend I won't bore you with the details but they were adamant that a couple or pairing of any kind could indeed be highly aroused by that sort of play and did agree that whilst it is obviously safe it was the dominant one who would decide the limits of what could be pushed.

I obviously disagreed with them and they had to settle the argument so we all were invited to theor basement that more like some sort of villains lair with the work they had done, the walls littered with equipment right along some of it was familiar other things were not, what shocked me was as well as those dog cages you often see in the typical scenarios the had a couple of legitimate cells down there too complete with a bed and toilet, I got a cold shiver as beside those were what looked like tunnels dug by hand they were slightly lower than hip hight but extended at least 7 feet into the wall and had a locking door on it with a tiny window.

As we made out way further in were chairs with straps and stirrups and an assortment of hanging chairs stocks and tables those x shaped things and in one corner was a wierd sort of table that had seems in it and joints like it could be moved around and have a person locked out like a starfish or spreadeagle.

The father Keith took Hollie over to a post and Hollie with out word or warning simply begins stripping off as Keith says he will demonstrate now that Hollie despite being a keen pain slut enjoyed it but there was a fine point between enjoyment and too much pain a dominant needed to keep on to deliver said punishment so Hollie wasn't enjoying it too much, He then said think of it as keeping the revs on a car in the sweet spot.

After Hollie was naked and she had all her rather nice assets on display that made me turn red as I fight not to stare Keith simply said "Don't be embarrassed Troy we're all adult here after all"
Like this was so normal he took Hollie and made her wrap her arms and legs around a pillar and the secured her wrists to a set of restrains and repeated the same for her ankles this meant her back was exposed and she couldn't bend or obviously move.

Out of no where Keith picks up a whip that was like a horses tail but thinker and begins sort of twirling it so the knotted heads lightly flick up against Hollies exposed flesh making her squirm but you could see how she pressed against the pillar it was sensual for her and progressing Keith put in more umph till red whelks started appearing and Hollie was on her tip toes panting and tugging at the restraints.
"Ugh.....ugh....Aiiiii, Daddy enough"
But he kept on for a considerable time before letting her go and stopping.

I thought it was silly and smirk as I laugh.
"Yeah but she said stop and you did stop, it's fake and not a punishment you have proven my point yourself"
Keith, Kate and Hollie looked pretty annoyed and begin questioning my reasoning and I hold up my hands and say.
"Safewords mean it's as fake as wrestling...sorry it just is"
At that moment I realise Angela is not with them as I suddenly see from right side a cloth fly at my face and smother me as Keith grips my wrists I hear Angela hiss in my ear.
"If that's what you want we will see to it you don't laugh for a long time......"

And with that I black out.

This is obvious a kink centric prompt involving domination so I won't list every kink because I'm myself open to them all surrounding bdsm, femdom, Mdom and all aspect of bdsm from anal to straightjackets and so on.

Limits wise I have few limits but no transformations, gore or vore.

I am 18+ years old and all partners and participants must also be 18+ years old