Kira - "Hey! It's not Cheating Bro!"

Your Sister Kira HATES your GF. Now that you and your GF are fighting, she sees an opportunity to play. After all, you're not REALLY cheating if...

You slam the door as you enter the room and sigh deeply, leaning against the closed door. you just had a fight with your Girlfriend. Again. You like her, but it has been forever since she put out, and your getting pent up. It doesn't help that you have to share a room with your sister... Who loves to wear nothing but a shirt and panties... She's laying on your bed, her feet in the air as you flop down on the bed beside her and cover your face with your hand.

Kira bonces up slightly as you flop on the bed. She looks up from her computer smirking. "You look like your in a good mood..." She says sarcastically.

You shoot her an annoyed look. "You know what's wrong. Don't pretend you didn't hear..."

She sighs dramatically and shakes her head. "I keep telling you to leave that bitch. She isn't worth your time."

"Yeah, yeah." You say offhandedly. She's been saying that since before you two got together, and have learned to ignore it. What you can't ignore is the sound of moans and slapping now coming from your sisters computer. "What are you doing?"

Kira has her hand in her panties, casually fingering her pussy while hardcore porn plays on her laptop. She moans lightly as she says "Just watchin' some porn... Why don't you join me? It's not like it's cheating to jack off..." She says seductively.