God, s-mom sure has been acting weird these days, I hope she hasn't been catching on to the fact you (my s-brother) have been fucking around. I go to my room during reading break after putting groceries away with dad. I finally get a minute to read... I notice my bro peeking in thru the Crack of the door. What do you want??? Come in then... wtf. Turns out you had intentions huh? To fuck your sister??? Dude everyone is home... no. We can't be fucking around like that when mom is home. I'm hesitant, at first. But noticing how hard your cock is gets me distracted from reading. If we make it fast.. cuz i dont want mom to catch us... I can't help it, I just wanna touch his hard cock... The more I touch it, the more turned on I get... I need to taste it... I suck your dick, Oh sh... I think I heard something at the door? Mom has been eavesdropping at the door, but we don't know. My brother has been fucking us both without me knowing, or her knowing. They say the apple doesn't fall far from the tree... like mother like daughter... Why do you get so much harder when I talk about mom? We have sex. You're looking at me all horny, like I'm a breedable little slut, but I'm trying to pretend I don't like it. I know I shouldn't but I keep fucking you.. the way you fuck me is so good... Just be careful and don't cum in me OK? This movie is what happend behind Closed Doors, with your sister, in the movie "family of sinners" by harley sin... Mom is eavesdropping in.... I wonder what she does outside the door? https://www.manyvids.com/Video/5555173/family-of-sinners-part-1