You barge in in a rage

While seeing this side of your girlfriend has subconsciously excited you, feelings of jealousy, exclusion, and betrayal well up in you. Your body is filled with adrenaline as you stomp into the bathroom and towards the shower, every muscle tense. Jason looks at you and immediately recognizes what situation he's in. His eyes widen and his smile of pleasure turns into a face of horror and he begins looking instinctually for a way out. He tries stepping around your girlfriend but you close the distance before he can make it to the other door. You throw one punch at his face, connecting. He loses his balance, slips on the shower floor, and falls back into it. You hear a loud thud as his head hits the tile wall and he crumples to the floor. Jane looks over, clearly worried for Jason's condition, but dares not move from her knees. Tears are in her eyes.

You move to check on your former friend. He's breathing, his heart is beating, and you can't detect any blood from where he hit his head. You realize that he could have a concussion but it's probably not life threatening. You turn to Jane. Her face is still covered in her spit, but now its trembling with fear and submission. She stares obediently up at you, opening and closing her mouth as if trying to offer an explanation or apology but deciding instead to just remain silent. You stand over her, your erection still stiff, tenting your pants.

You have a hard time deciding what you want to do with your slut of a girlfriend as you tower over her. She stays silent, her face growing less tense. You realize that she'll accept any fate you decide, be it peaceful, carnal, or violent. Her shame for dishonoring you and for showing no self-respect made her weak. Her watching you knock a guy out to claim her made her obedient and horny.

You smile as you finally make up your mind.