You go see Gwen

You see your mom grab the end of the leash and walk to the door. If Gwen saw you in this state, there would be nothing you could do to stop her filling your fertile womb with cum. Even though you knew it was pointless, you still stood in place, even as the lead pulled taut. Wordlessly she gave it a sharp tug, watching you stumble forward. She looked at you and smiled lustfully. "I don't mind if you resist. In fact, it turns me on as much as it does you." You feel your sex throb as she gives it another sharp tug, making you stumble again. Helpless to stop her or your own body, you obediently walk behind her, feeling the plug shift slightly in your ass as you do so. She approaches Gwen's door and gives it a soft knock. A few moments later, the door opens and you see your sleepy-eyed sister.

"Mom?" She asked.

"Sorry to wake you sweetie, but your father and I caught your... acquaintance here snooping through our closet " She tugs the lead and you teeter forward a few steps into Gwen's view. Her eyes widen as she notices the leash and gag, and you instinctively look down to her crotch. It's covered by a large t-shirt but you can just make out the bulge underneath. Fortunately, your mom doesn't notice. "I know you're old enough to make your own decisions now, but you should choose who you sleep with more carefully." she advises.

"R-right... sorry..." Gwen replies. She didn't know what exactly you said to your mom, but decided to go along with it. The fewer people that knew about your problem, the better. She hands Gwen the leash and she walks back across the hallway, closing her bedroom door behind her. Gwen pulls you into the room and closes the door behind her.