[Read Part 1 Here](https://www.reddit.com/user/ukdc2lc/comments/e8auon/my_sisterinlaw_on_our_family_holiday/)
[Part 2](https://www.reddit.com/user/ukdc2lc/comments/e8r5un/my_sisterinlaw_on_our_family_holiday_part_two/)
Part 3 [Part 3](https://www.reddit.com/user/ukdc2lc/comments/e98f19/my_sisterinlaw_on_our_family_holiday_part_three/?utm_source=share&utm_medium=ios_app&utm_name=iossmf)
The holiday changed everything between us but so far we’ve been back a month and nothing has happened. I started to think that she’d changed her mind so I thought I’d test the water to see if that was true.
We had a family party to go to which was held in a village hall about an hours drive from us. There would be about 30 family members but her boyfriend, my brother in law, wouldn’t be there as he had to work.
We’d decided to give her a lift to the event as we had space so it made sense. As it was a summer party she was in a dress that fell just above her knees and showed her gorgeous legs off perfectly.
As you’d expect from a family party it was very slow going, the older generation catching up with the children and everyone eating way too much food. Every year we have a tradition where we have a huge family game of football. Most people get involved, and the teams get picked and everyone runs around like a headless chicken.
I made a point of bumping into her whenever the ball went near her but she didn’t take the bait. During the half time breather, I text her ‘toilets now!’, I made my way there and waited to see if she turned up.
A knock on the door gave me the answer, with my finger over her lips to signal to be quiet and ushered her into the cubical. I knew we had to be quick before anyone noticed and before the match restarted. She knew what was in store and she bent over, with a swift slap on her ass I began rubbing over her knickers and then pushing them to one side and started to tease her pussy with my fingers. With her begging in my ear and her grabbing at my shorts to get my cock out, I was rock hard and ready to fuck her for the first time since our holiday.
The location, the situation and the passion all played a massive part in the quick fuck we had. This wasn’t making love it was more the both of us getting exactly what we needed. With her quietly asking me to give her my cum I didn’t last too long but she didn’t seem to be disappointed. I told her not to clean up just put her panties back on.
I left her there and ran back outside to continue playing football. The remaining few hours of the party went smoothly and people started to make their excuses and leave.
With a 90 minute drive ahead we too made an excuse and prepared to leave. My wife suggested she sat in the back as they were tired and could relax more as it was darker and comfy. That was fine with me and I could tease the SIL who still had cum in her panties from me.
As we made our way home the others were asleep after an hour or so and I took that opportunity to rest my hand on her inner thigh and gently stroke her. Her legs started to part allowing me to brush my fingers over her knickers and ever so slowly dip a finger into her cum filled pussy.
Not wanting to wake anyone I removed my finger and carried on driving but not before she placed my finger in her mouth and sucked it clean.
As we pulled up to our house I dropped the family off and then I’d drive the SIL home which was about another 20 minutes. Her boyfriend wouldn’t be home yet and I had a plan.
The drive there was quiet and we soon arrived. I turned off the engine and escorted her to the front door. I wanted to check that he was fine still with her fucking other guys and she confirmed as long as he didn’t know who they were.
With that information I got her inside and and to the stairs super quickly. I ordered her to strip naked and lay on the bed. I walked to the wardrobe and searched for some items to tie her to the bed and returned with a tie and some cord from a bath robe.
Her eyes lit up with mischief and knew what was coming. With her hands tied to the bed I started kissing her all over, from her feet, to her slender legs, across her tummy, nibbling and sucking her amazing breasts and passionately kissing her on the lips.
I removed my trousers and released my hard cock ready to fuck her for the second time today.
I slowly moved between her legs and positioned the tip of my cock, teasing her until she begged me to put it in her. Slowly inch by inch I slid deeper and deeper, her moans could be heard around the house, slowly making love to her, begging her to cum for me, kissing her neck as I moved in and out. My hands grabbing her bum to bring us closer together, getting more and more passionate as her orgasm built.
Her pussy gripping my cock, trying to milk my cum out, as for the first time she called out my name and her orgasm sent her body into a quake. My own orgasm soon followed and I pumped every last drop into her, and we collapsed together her arms still tied to the bed.
I slowly pulled out of her and admired her wet red pussy with cum leaking out of it.
I looked at her and asked her if she was sure and she nodded and at that moment had never looked more beautiful.
I got dressed and kissed her on the forehead and left her tied to the bed and headed home.
Source: reddit.com/r/Erotica/comments/ee4rby/my_sisterinlaw_back_home_part_four_cheating_inlaws
Ok… wow