Where to begin, but the beginning. I’ve known my now Sister in law (Sam) longer than my wife (Lee) that’s how her and I met. Well needless to say I’ve always found Sam attractive! Not that my wife isn’t!

Fast forward to Christmas 23’ Sam and Lee’s mom had asked us to stay at their house for the holiday. Not a big deal. It’s Christmas Eve drinks are going down faster and faster. I mentioned how I wanted to go in the hot tub Lee, and Sam both agree to come in with me. I’m the first in. Then comes Sam in a two piece bikini showing off her curves and amazing rack! I instantly get hard and thank my lucky stars it’s dark. Sam goes to step in but slips most likely because of the alcohol. I catch her thinking nothing of it until she looks me in the eyes and I realize that she can feel my hard cock up against her.

Lee comes out asking if Sam is okay and offers to get everyone a new drink before she comes in. Sam gets her balance and sits down as do I looking sheepish I pick a seat furthest away.

Lee comes back with new drinks. Night goes “normal” for a while and my wife lays her hand on my crotch and begins to stroke me in front of her sister. Thank god for the jets as you couldn’t tell what was going on under the water. Sam at this point says it’s her turn to get drinks so I watch her get out admiring her ass! As Lee is now squeezing my hard cock. She leans over and whispers “I hope you’re not too drunk to use this on me tonight” my mind is racing and I’m close to orgasm right there thinking not about my wife but about her sister.

We drink more night carries on next thing we notice is everyone else has gone to bed. Lee decided it was also time for bed but Sam said she isn’t ready so I volunteered to stay. You know so she doesn’t drown. Lee laughed it off and agrees.

Sam and I are alone now chatting away but someway it turns to a flirtatious conversation. She started telling me all about her sex life with her husband and how he has a small penis…”not like yours” she says. I kinda chuckled saying “oh you noticed ah” jokingly. She slinks over to me her hands crawling up my legs until she finds the waistline of my shorts. Lightly pulling them down. All at once the moment is broken by her husband. He pokes his head out the door asking if we are alive. Sam laughs and says she’ll be right in.

With that she gets out looking at me with a wicked smile. I fix myself and head inside to my wife.well she is passed out, dead to the world.

I decided I was going to have a quick shower and “relieve” myself. I’m standing in the shower mind is spinning of Sam! I’m pumping hard on my cock. Little did I hear her come into the bathroom, watching me through the shower door. She opens it and I’m caught red handed. I see her naked standing in front of me. She grins and takes my cock in hand and steps into the shower with me. We start to kiss.,,I know it’s wrong but can’t stop myself since she has ahold of my cock.

She drops to her knees and begins to suck my cock. I’m really enjoying it but then she sticks a finger in my Ass. Causing me to jump, with out skipping a beat she winks at me and begins to massage my prostate sending me over the edge! I explode and she takes every last drop! She stands up kisses me and tells me to leave so she can have a shower. In absolute shock I leave. I crawl into bed next to my wife and have an amazing sleep.

The next morning I’m woken by kids screaming for presents. I stumbled down stairs and Sam gives me a hug wishing me a marry Christmas, like nothing happened.