My oldest sister Allison is the best looking in the family. I was fairly young when she moved out. We all meet at my parent’s place once a year at Christmas, she brings her partner. My sister’s partner is another gorgeous woman about 5 years older so I guess she’s 36. Every year I feel like I’m being tortured. I really like her partner, Bev. She’s a young milfy type. I think my sister was a bit of arm candy for her when they met.

This year same as always I was constantly erect around her but I was getting a sense she was receptive to my casual glances and cute jokes. I think even my sister noticed. A couple nights ago I bumped into her in the hall as she we were both going for a late night pee. I laughed “yup, 3:30 like clockwork” The next night I bumped into her again. She just had her panties and a tshirt on. I said jokingly “must be 3:30.!” When I looked at my clock back in bed it was exactly 3:32 now. Coincidence? Maybe.

Last night I set my watch to buzz my wrist right at 3:30. I went into the bathroom and I could hear the tinkling sound a girl peeing makes. I turned the light on and Bev was peeing. She said “please shut the light off you’re embarrassing me” I’d got a good look cause tonight she didn’t have a top on. Gorgeous boobs with big areoles and knobby pink nipples. It was dark and she flushed the toilet I was waiting by the sink for her to finish. She bumped into me and turned the water on to wash her hands. I wasn’t reading anything into this, she was rubbing her nipples against me. She says “Don’t you need to pee?” Not really. I just came to see if you did. She smiled. “I set my watch” lol. Haha. Me too!

I lifted her onto the ledge on the vanity. She said “Allison would not be happy but I decided I wanted a man” I pulled her panties off and held them to my nose. I went to go down on her but she stopped me” “ummm. That’s all Allison and I do mostly. I need sex from a man. A cock in me” My cock was 90% hard and sucking on her knobby nipples took it to 100%. I rubbed my cock up and down her slit. Without a second thought I jammed it in her. She winced and whispered “fucking goddamn it. Ouch!” Oh crap. She’s a virgin!! A 36 year old lesbian virgin. Wow.

She was obviously really tight. As I gently pushed into her she seemed to get over the initial pain quickly. She had her mouth to my ear. “Oh wow. This feels so good.” I said “I’ve wanted to do exactly this with you for years” that’s when she gave me a real kiss. A super kiss. Her legs wrapped around behind my bum and she made a low moaning sound and whimpering too. Then she used her legs to pull me in hard to finish herself off. Her juices soaked my balls she was so turned on. I could feel her vaginal contractions as she came. I came right after. I lifted her of the sink. She looked at me “now the hard part. I have to make sure to get your stuff completely out of me. Allison would notice that for sure” she said she’ll put off Allison if she wants sex till she can flush it out. Till then she sat on the toilet and pushed on her tummy. Yup. I heard part of my load hit the water. lol.

Next day she winked “clean as a whistle thanks to the shower wand! lol” I asked “ so, was that a one time thing?” She goes “god I hope not. What am I supposed to do at 3:30 in the morning‽” wink the rest of their stay we fucked at 3:30 in the morning. Instead of cumming in her I’d finish in her mouth, she learned to suck cock and swallow. Anything to avoid getting caught by having cum in her pussy. That included anal the last night. Allison never caught on luckily. Sadly they’d be leaving in a couple hours. Bev came up to me. “This sucks. I was getting used to getting fucked at 3:30 every night”. When no one was around I grabbed her tits and squeezed them and gave her a big kiss. She looked kinda sad.

Bev texted me a couple weeks later. She was taking a transfer with her company to a city about 30 minutes from where I live. She asked if I’d be into seeing her. I told her “hell ya!” She replied “I’m looking forward to fucking in a bed and trying every position”

I made the trip to where they lived once or twice a week and got a motel on the outskirts of town on the highway I came in on. We spent the whole day in the room to avoid being seen and mostly because we fucked like minks all day.

About 6 months into it we were leaving the motel. My sister was sitting on her car. She’d put an Apple AirTag in her car. There was a scene. We both got yelled at. They broke up. For Bev I was a naughty bisexual liaison for her. She wanted it both ways. I could somehow see sharing her with my sister, I was not into sharing her with a stranger.

That was it for me and Bev. Well, until I met her new girlfriend in the huge mall in that town. I changed my mind. Plus the element of the 3 of us was a bonus. Allison my sister got over it although I’m sure she wouldn’t like it if she knew I was still doing Bev!!