You find Samantha's vibrator

Under a bunch of files and photos (many of her and Jimmy) in Samantha's nightstand you find a purple vibrator.

Claire looks over after hearing your excitement. "Ah the classic rabbit vibrator," sister says nonchalantly. "I've got one of those too."

Then Claire notices you aren't so nonchalant about this. You're rock hard.

“Hey mister," Claire says as she gropes your dick. "Are you hard because of me, or thinking of my sister using that?"

You look Claire in the eyes and then bring the vibrator to your mouth and suck on it.

"I don’t know if I should be disgusted or turned on right now," she says.

Then you turn the vibrator on and press it against her clit. Claire moans. You kiss her deeply knowing full well you just sucked on her own sister's vibrator.