Your wifes sister is in town for a few days visiting and is staying over at your house while shes in town. While staying over your wife still has to go out for the day for work leaving you and her sister all alone at the house. The two of you are sitting on the couch talking until she starts teasing you abit, telling you how she see’s you staring at her and checking her out while she’s been staying there with you and your wife. She also tells you shes purposly been wearing low cut tops to show her tits off because she likes teasing you when your wife/her sister isnt around. She see’s that your hard and starts touching your cock (off screen) until finally pulling it out and telling you how much of a good little slut she can be and starts sucking you off until you blow your load all over her face and tits.
