I’ll use my cock to shut your mouth

"Ava, are you awake?"

When Zoe came out of the bathroom, she was almost done tidying up, having changed into a clean pair of underwear. Only Sam noticed the blush on her face hadn't faded; in fact, it seemed even more pronounced than when she had first entered the bathroom. 

Well, damn. What was she up to? She couldn't have been pleasuring herself in the bathroom in that short time, could she?

"Um, sorry for the trouble, Zoe."

Ava was quite polite, especially considering that during the day when Sam wasn't around, she had learned from her conversations with Zoe. 

This woman wasn't a stranger to her brother; they often dined together, which, according to Zoe, made meals less boring and warmer with company.