I fuck my girlfriend's stepmom while my girlfriend fuck my stepdad

My girlfriend's stepmom lured me to the bedroom and jerked off my cock with her feet. After she jerked off my cock with her feet, I bent her over and fucked her creamy pussy doggystyle. While I was fucking my girlfriend's stepmom, my girlfriend caught me and took revenge by seducing and fucking my stepdad in the sitting room.