Olivia cucks you

"Do you like watching me fuck your girlfriend?" Olivia grabs you by the mouth and forces you to watch as her cock sinks into your girlfriends thoroughly churned pussy.

"Please Liv, don't!" Stacey tries and fails to cover her pussy, blushing a deep shade of crimson.

"No?" Olivia ignores Stacey. "Well how about now?" An object that you recognize as the marker floats into Olivia's hand and you watch in horror in the TV's reflection as she writes CUCK on your forehead.

"Oh, Liv. What have you d-d-done?" Stacey moans as another wave of pleasure rolls through her body.

You had to admit, it was kind of hot watching your girlfriend be fucked by a cock that wasn't your own. I mean, it looked like she was enjoying it. Isn't that what you wanted? For your girlfriend to be happy.

"Hahahaha! Oh my god! Finn, are you getting a boner?" Olivia laughs.

"Er, no..." You try to cover yourself but your arms still won't move. You feel so emasculated, yet so aroused.

Olivia looks at you doubtfully with a twinkle of amusement in her eyes.