A dare from my older cousin turned a Halloween party into me cheating on my bf [FM]

When I was 19 my cousin (31), who I’m not that close to and only see once in a while, invited me to an early Halloween party being thrown by him and his girlfriend (24). I couldn’t really say no since it was so close to my school and he buys me a lot of wine and liquor to keep in my dorm, so I decided to show up early and leave early because usually his parties are pretty boring and filled with dudes in their mid-30s.

This was a few days before actual Halloween, so I told my BF I would go solo – he lives a few hours away and goes to a different school. He was totally fine with it because he knows my cousin really well and didn’t care.

I dug out my last years costume – a really generic sexy cop kind of outfit that was literally a black tight button up that I buttoned half way, a black cloth skirt, thigh highs with little badges on them and knee high boots. The year before I had a dildo shaped like a nightstick but I couldn’t find it anywhere. I settled on the fake squirt gun I had and put my hair back in a ponytail, it had just gotten to that length after shaving it a while before.

At the party, it was shockingly packed, like 150 people were stuffed into my cousins four bedroom house. He had a huge backyard and a full wraparound porch, so there was a lot of space for people, and his property was kind of off the main road and not around other houses, so cops showing up was unlikely.

Turns out he was co-hosting this thing with some other couple who were pretty popular and in grad school at my college. I was shocked when I was walking up to see a lot of other girls that went to the nines and were showing a ton of skin for grad school girls. Most people were couple-themed costumes, but there were a ton of sexy mermaid types, slutty school girls, and a few girls just in fishnet catsuits and pasties.

When Frank, my cousin saw me, he was pretty shocked I had my shirt wide open with no bra and a skirt high enough to show some cheek because he always considered me a total prude – which I thought was kind of hilarious. Him and his gf Liza were both like Wow, you went all out, and so I didn’t tell them my costume this year was actually censored (it’s pixelated pasties and a pixelated thong – not gonna post pics because I have a handful of very identifiable tattoos).

The drinks flow and I make fast friends with a lot of people, mostly guys I’m talking to. Frank comes back over, already half drunk, and he’s introducing me to his best friend, this guy Robbie, who is basically the real life Thor and dressed like a lumberjack. We totally hit it off and are talking and he starts teasing me about my costume and how unoriginal it is. I tell him a lumberjack costume is bullshit, and he says it’s just how he dresses, it’s not a costume.

Long story short, I tell him and my cousin all about my costume for the party on Halloween. They are both teasing me like crazy and tell me I don’t have the balls to pull that off at all.

“If you think you can wear that in front of all your friends, why not wear it here, no one knows who you are,” Frank says, pushing me, mostly knowing I don’t back down from dares because I’m stupid. Robbie joins in and starts pushing me too.

I tell them no way, besides the costume is in my drawer at home.

“Not a problem, I’ve only had one drink, I’ll drive you,” Robbie says.

I hesitate, they start teasing me more, and I cave in because again, I’m stupid.

Robbie drives me back to the dorms and refuses to wait for me in the car. He says he is here to supervise. Great.

The outfit is literally in a sandwich bag in my top drawer so while Robbie sits at my desk, politely looking in the opposite direction I strip out of the cop outfit and stick on the cheap plasticy pasties, and slide into the thong and holy shit, there is zero coverage and I’m kind of unsure what I was thinking. I was cold standing in my warm dorm room.

Robbie looked back, gave me a wow, and said I just looked naked because the pixelation was skin color and looked more like an actual nipple than a pixelated nipple. As we’re leaving I grab a coverup I use at the beach sometimes which is like a super thick scarf made of light cotton.

And, yes, I probably wouldn’t have felt comfortable wearing this in front of my friends. I know I’m in great shape and don’t worry about my body, but holy shit, I could feel wind on my butthole. When we got back to the party, I did a lot of sitting with my legs crossed while talking to people and I felt totally naked the whole time and spent a while crossing my arms and trying to feel comfortable.

After Robbie pumped a bunch of vodka sodas and half a joint into me I was relaxed and open to standing around talking to people and started to actually enjoy being looked at. One drunk girl came up to me and spent five minutes complimenting my bravery and body and was spending a lot of time touching my breasts, which wasn’t bad.

Frank stayed by my side most of the night in either some protective way or incesty way, I wasn’t sure and as drunk as I was getting, I didn’t really care. I tend to get super flirty the drunker I get, then I fall asleep. I was at about a 7 if 10 was ready to fall asleep and 1 was sober.

I spent way too long sitting in my cousin’s friends laps and teasing them, and I heard way too many of them ask how old I was. At 5’2, and about 90lbs, I am pretty small and look fairly young which some guys like in a sometimes weird way.

Because the thong was a t-back type of thing, I couldn’t bend over without most of my pussy showing, so I did a lot of bending at the knees. As I passed from solid 8 to almost a 9 Robbie was getting way more attractive with each passing drink and my inhibitions had left a while ago. It also helped I left my phone at the dorms so I couldn’t feel guilty seeing texts from my boyfriend.

We were out on the porch on the swing talking about what Robbie did for work, some type of marketing, he said he had to pee. I sat up – I had been laying on his lap – and realized I had to also, so I followed him.

He made that stupid joke, You gonna hold it for me, that I hate, but just to fuck with him I said, “Why, need me to?” I know, awesome drunken reply! He just laughed.

We went to my cousin’s bedroom, the Master, and he went into the bathroom and left the door open. I could hear him pee while I went through Frank’s dresser drawers. I laughed when I found their stash of sex toys that included a strapon and a shit ton of polaroids of them fucking.

Robbie came up behind me and was rubbing my shoulders when he noticed I was flipping through photos of his friend fucking his girlfriend and another woman. There were threesome photos, foursome, lots of bdsm stuff, Frank getting pegged, and more – the stack of pics was like four inches thick. We laughed and spread them out on the bed, and we laid down and were going through them one by one. A total invasion of privacy, but holy shit it was kind of hot and kind of hilarious.

Robbie was sitting up, and I was laying on my tummy next to him and the whole time he was rubbing my back and the top of my ass, and since I was closer to a 9 than a 1, it was starting to feel way too good.

“I have a boyfriend,” I told him.

“And? I have a girlfriend, congrats.”

“How old are you?” I asked.

“33,” he said. He’d be the oldest guy I was ever with at this point, which could be fun maybe? He didn’t ask how old I was.

I gathered up all the photos and put them back in the drawer and while I was shutting it, he stood up behind me and wrapped his massive arms around me, lifting me up in the air. He tossed me like a doll over to the bed and then lowered himself onto me and started kissing me. His short beard was rough on my face, but it was really sexy.

Robbie was at least a foot taller than me and easily had 150lbs on me, and was by far the biggest guy I’ve ever kissed. He handled me like a plaything, it was bizarre. He was just rough enough to be dominant, but gentle enough not to hurt me. He slid my thong aside and ran his wide tongue along my already soaked pussy lips. It easily found my clit and sent shockwaves through me. He clearly had lots of oral practice unlike most college guys and focused in on the job with serious skill.

He pushed my ass up in the air holding my thighs apart and buried his tongue inside of me. I’ve had a lot of awful oral in my life, and very little good, and this was the best ever. I instantly drenched my thighs and he slowly slid two fingers into me, hooking them into my g-spot and massaging them quickly while licking my clit and I didn’t have a goddamn chance. It felt like I came in about 30 seconds, but I was pretty drunk so not sure how long it was.

Robbie stood at the edge of the bed smiling down at me as he unbuckled his belt as if he was giving me time to stop him or something. I wanted to see his cock so bad, and feel it in my everywhere, I was so turned on. His jeans dropped with a thump and he slid down his boxers to reveal a dick I could only describe as porn star-ish. He must’ve liked my reaction because he smiled.

I was still insanely sensitive from my orgasm and he didn’t bother waiting at all, he stepped in and rubbed the head of his cock against my pussy lips and it sent electric pulses through my body. I grabbed his arm and yelled at him to just fuck me.

I really wasn’t ready for him to push hard inside of me quickly. The shock was a lot, and I gasped and arched my back while cursing. He just went for it and started thrusting inside of me, not even starting slow at all, just full speed into it. I was stuck repeating oh god oh fuck oh god oh fuck and he was laughing and driving into me harder – he loved it.

I tried to push back against him and he just swatted my hands away. It was so intense but also fucking amazing. I could feel him deep inside of me. With zero effort he picked me up and flipped me over, I was face down in a stack of pillows and didn’t get my balance before he’d grabbed my ass cheeks and pushed his massive cock back inside of me. I cried out and grabbed a handful of sheet and literally bit a pillow that smelled like coconut shampoo. I looked back and there were definitely some people looking at us through the now open bedroom door. I didn’t give a fuck.

Again I pushed back on his wide thigh and tried to pull back a bit from the intensity, but he grabbed my arm and held it against my back and I bit my lip to avoid screaming in pleasure as I felt him push his entire length inside of me. I reached back with my other hand, and he pinned that behind my back as well. I hadn’t even gotten the thong off yet.

He picked up his pace, adding several hard slaps to my left ass cheek which now stung, standing out against the feeling of his cock buried inside of me. I was very close to cumming a second time.

I couldn’t restrain my yells and had started loudly moaning and cursing. I felt so out of control, it was amazing. Suddenly he free’d my hands and pinned me flat on my tummy as he pulled out and came all over my back, I felt the warmth spreading as I came hard, my pussy gushing all over my cousin’s bed.

I could only lay there and pant, and he was already getting dressed. He sat next to me and asked how that was, I just kept trying to catch my breath. He got me a damp towel and helped clean me up a bit before we went back out to the party and kept drinking.

I ended up crashing on my cousin’s couch that night, but Robbie went home to his girlfriend.

Source: reddit.com/r/gonewildstories/comments/d2bc5h/a_dare_from_my_older_cousin_turned_a_halloween