SIL have had a better attitude the past few weeks and things are going well between everyone in the house. Your wife suggest that you and your SIL goes for a hike to get some fresh air and maybe bond even more. Things are going well until you stop for some water. You compliment your SIL and that's when she starts to be a bitch again. She goes on and on about stuff and you try to get her to realize she is starting to fuck things up by being a bitch again.
Eventually you tell her that you have to teach her a lesson again and demand her to strip naked. You use the reed you've been walking ...

SIL have had a better attitude the past few weeks and things are going well between everyone in the house. Your wife suggest that you and your SIL goes for a hike to get some fresh air and maybe bond even more. Things are going well until you stop for some water. You compliment your SIL and that's when she starts to be a bitch again. She goes on and on about stuff and you try to get her to realize she is starting to fuck things up by being a bitch again.
Eventually you tell her that you have to teach her a lesson again and demand her to strip naked. You use the reed you've been walking with and start to spank her on her ass, thighs, pussy and tits. At a time you also put some muscle spray on your hand and rub it over her pussy lips. That will give her a very cold and maybe not so nice sensation.
You also decide to place clothing pins on her nipples again, but this time you clamp the pins deeper onto her nipples making it much worse. She then have to suck your cock and have to work her way to freedom. The faster she get you to cum, the sooner the pins will be taken off.
She tries so hard to suck you off but the sun is super hot and draining all of her energy. You tell her to get up and bend over and you fuck her from behind, making her tits bounce and making it excruciating for her as it's been almost an hour of having the pins on her nipples. At the end you are close to cum and tells her to get on the ground. You end up cumming on her face.
She thinks it over when you finally take off the pins from her very sore and sensitive nipples, but then demand her to lay down and you start to finger her. Hitting her G-spot. This is not fun for her as she doesn't want you to finger her and make her cum. BUT you are the master and she will obey. She eventually have an orgasm which was out of her control.