In the beginning of this year, my husband, my sister and I went to a wildlife sanctuary for a day trip. In the afternoon, we reached to a dam site and through the dam walkway we reached to the other side which was the beginning of the forest. Both my husband and sister seemed to get excited and frisky in there and they asked me to stay there and keep a watch and walked a bit into the forest.

I stood outside and luckily there wasn't any crowd at this point and only people I saw were standing on the other side. Then I looked around and saw my sister pulling her pants down and then the panties and my husband rubbing her pussy at first and then entering her as she bent over a tree. He seemed to be fucking her hard from behind. He looked at me and gestured with my hand that everything is alright. Then I saw them switching.

She stood up and turned around and he pinned her against the tree and entered from the front. In between that, she lifted one leg up and kept on his body and he slapped her tits and pinched her nipple over her top. She tilted her head and saw me watching them she smiled at me then quickly turned to him. He finished inside her and then I saw her going down on him to clean him up. Then he walked up to me and kisses me and said thank you. She joined us back after putting her clothes back on and we continued with our trip.