Stepsister and her bbc bf blackmailed my stepbrother

Stepbrother blackmails stepsister and bbc loverget out of here you little perv im in the shower... but she's not alone and he knows it. he says he'll leave but if he does he's telling on her and the guy shes hiding in the shower.. yep busted by little stepbro. what do you want? what you little perv seriously. yep thats right he wants to watch her get fucked in the shower or she can be grounded for life... her boyfriend assures her it'll be fine he's a boy and boys will be boys its not a big deal besides they cant afford to get caught so they really should just let him watch. fine but im not talking to you while he fucks me so just sit there and dont say a word got it.... as they fuck in the shower and they cum to a heated orgasms the boyfriend hears a door and the stepsister begs the stepbrother to go cover for them while they get out and promises he can watch again if her doesnt tell..