Your Girlfriend Cheats On You With Your Futa Step Sister

This time it was planned

Forced NTR

You come home excited that tonight is the night you and your girlfriend will finally get intimate with each other only to hear screaming and what sounds like a fight. You rushed upstairs to see your stepsister as deep as she can in your girlfriends pussy as your girlfriend screams for her to cum inside.

Side note: holy shit the last one blew up fast. Not to mention the NTR community is super picky (despite getting cheated on, the irony is astounding)

image cred: 0w0wer