You go to guest room to where Cait is

You don't waste a second and run to the guest room, Caitlyn still wearing her soaked cami set. "What the fuck!" She exclaims as she notices you. "Get out of here before I call mom!" She says.

You call her bluff. "And what are you going to say?" You continue "Are you going to confess that you were touching yourself thinking of her last night?". Cait is stunned.

Caitlyn stares at you in disbelief, her face flushing a deep shade of crimson. She clutches the damp camisole to her chest, as if trying to shield herself from your piercing gaze. "I...I don't know what you're talking about," she stammers, but her body language betrays her guilt. Her eyes dart nervously around the room, refusing to meet your stare.

You take a step closer, your voice low and husky. "Come on, Cait. I saw the way you were looking at Mom, the way you were touching yourself. Don't pretend like you didn't enjoy it." You reach out and grasp her wrist, gently but firmly pulling her hand away from her chest.

"I also saw you last night, I heard you, you left the doors open accidentally" you press on.

Caitlyn's eyes widen in shock, her face turning an even deeper shade of red. "You...you saw me?" she whispers, her voice trembling. "How could you...I was...I was just..." She trails off, unable to find the words to explain herself.

You press on, your grip on her wrist tightening slightly. "You were just getting yourself off, thinking about Mom. Admit it, you want her." Your voice is low, almost a growl, as you lean in closer to your sister.

Caitlyn shivers at your words, her breath catching in her throat. She opens her mouth to protest, but no words come out.

"Are you a lesbian?" you ask, your voice low and husky. Caitlyn's eyes widen in surprise at your question, her lips parting slightly. "What? No, of course not," she stammers, her cheeks flushing an even deeper shade of red. "I'm...I'm bi." The admission hangs in the air between you, heavy with implication.