My little sister just broke up with her boyfriend. My girlfriend and I are going to let her stay here for awhile. She gets to our condo and my girlfriend immediately takes her to our bedroom for "girl time". I am confused about why they are taking so long and I hear noises coming from our room. I walk in to see my girlfriend using a hitachi on my little sister and fucking her with her mouth! I am so confused and turned on! My girlfriend says it's okay and she is just helping my sister feel better about her breakup. She then tells me I need to stay and fuck her while she fucks my sister. We are both a little hesitant but turned on too much to say no. I fuck my girlfriend from behind and watch her play with my little sister's pussy. My sister says it is weird to watch me fuck but she needs that cock inside her. I fuck my little sister until she cums hard all over my cock! I pull them both into doggystyle and spray them down with my cum! My girlfriend licks the cum off my little sister's ass and then my sister returns the favor. OH, I love my family!