Adultery in front of sleeping wife

You wanted to have some sexy time with your wife before the sleep, but she was not up for it. Luckily for you, wife's sister Caomei was more than ready and willing to do it, so she sneaked into your room and woke your dick up with an amazing blowjob. With your wife sleeping soundly beside, horny you slid your long prick deep inside of her stacked sister