You've returned home to find your sis wearing a strap-on and your wife is in the shower. Your sis explains that she & your wife had a few drinks and your wife confessed she was unsatisfied with you in the bedroom. She even talked about your small penis! Your sis decided your wife deserved to have a good time, to have her pussy filled with a thick cock and to be sexually satisfied in ways apparently you had failed at. Your sis orders you to suck your wife's pussy juices off of the cock as part of the beginning of your training as a cuckold. If you're going to keep your wife you're going to have to learn to be a perfect cuckold because she's going to be fucking other men...and your sis from now on.
Length: 5 minutes