[FMM] I got off like a whore at a sex party

My friend Lars is a dominant guy. I sometimes play with him and his wife Kristiina. But it's always two or three of us. I know that they sometimes host sex parties with other people but I was never invited.

Until one day he invited me,

"Ania, it's gonna be crazy," Lars said, - "There are roles: naked maids, prostitutes, furniture girls. You in?"

I was tempted but I said no. I did not want my face seen, and I did not want anyone else's cock inside me. I explained that to Lars. I thought that would be the end of the conversation, but he came up with a new idea.

 "Be a petting post. Naked, blindfolded, in a wide tube with holes for your belly, thighs, ass, tits. Face hidden, no dicks in you. Just hands, touches, maybe fingers. You'll be cuffed, helpless, for groping. Good?"

My pussy tightened.

I nodded.

 "Yeah. Let's do it."

On party night, I Lars took me to the loft. In a back room, he stripped me naked an put a thick blindfold on me. He led me into a wide tube. My wrists got cuffed behind me, metal digging in. The tube had holes: for my belly, thighs, and ass. My tits stuck out. My face stayed hidden.

I felt so deliciously vulnerable!

I heard the party start: people talking, glasses clinking, moans, gasps. Then a rough hand grabbed my left tit, squeezing it hard. I gasped. The hand mashed my breast, thumb on my nipple, pinching sharp. It shot heat to my clit. Other hands touched my thighs, warm and rough, gripping tight, spreading them a bit.

My pussy twitched.

Then more hands touched on my ass. Fingers groped my cheeks and pulled them apart. Someone slapped my right cheek.

 "Ahh, yess,"

 The slap burned, heat spreading as they squeezed more. A finger teased near my asshole, not going in. My tits got grabbed harder, both now, crushed in someone's hands.

My pussy was dripping down my thighs.

A hand moved from my thigh to my pussy, brushing my wet lips.

"Ohh, f-fuck, yess," I groaned.

Fingers spread my folds, rubbed slow, then two pushed into my tight cunt. They stretched me, rough knuckles scraping as they moved in and out. I panted.

Hands on my ass slapped again,

"More, more…" I begged.

The fingers in my pussy curled, hit a good spot, and rubbed hard. A thumb flicked my clit.

My ass got slapped hard again. I cried, "Ahh, fuck, yesss!"

My pussy clenched on someone's fingers, and those fingers were going deeper, faster…

Then it hit. My orgasm exploded.

, "F-fuuuck!" I screamed. My body was jerking. My hips tried to move. Cuffs bit my wrists.

I loved this. I loved being unknown, helpless, and used like that.

I knew I'd come back for more parties.