My sister-in-law gave an erotic oil massage and got naughty

My wife's sister came to visit us, and I took the opportunity to ask her for a massage. She agreed and brought some oil with her. As she started massaging my back, I could feel her hands wandering towards my lower back, and soon enough, she was rubbing my ass. It was clear that she was getting turned on, and I couldn't resist the temptation. I turned around and started kissing her neck, which only fueled her desire. Before long, we were both naked, and she was sucking my dick. After some oral, she wanted me to fuck her hard, and we moved to the bedroom. There, I fucked her in various positions, including doggy style and missionary. Towards the end, I asked if she wanted to try anal, and she agreed. The sight of my cock going inside her ass was incredibly hot, and it was the perfect way to end our erotic encounter.