Sam notices

I look over and see Sam staring straight at Meg and me with a furrowed brow and a frown on her face. I tap Meg on the shoulder. She draws herself off my cock, I'm excruciatingly aware of the fact that my sister-in-law is watching my hard cock slip into view litterally within her reach.

Meg looks up and her eyes widen when they see Sam staring at her and her face drops as she takes in the unhappy expression on her sister's face. "Sam! Sorry I thought you were asleep..."

"I woke up," Sam responds with ice in her voice.

"Sorry, I really didn't think you'd mind." Meg looks genuinely sorry. "You've always done such wild things with Josh. You've told me stories with handcuffs and ball gags and things I don't even understand, I didn't think you'd be a prude about this even if you did catch us."

Ball gags and handcuffs? I can't help but flash through some fantasy images of Sam tied up and horny.

Sam's icy expression cracks and she suddenly looks like she might cry. "We did do crazy things, we still do. It's become just a routine, it's always planned he runs thru the same series of kinks." Now she really does begin to cry. "A couple of years ago I told him it just felt too cold and impersonal, he suggested we spice it up and bring in other people." Sam drops her gaze, embarrassed, "I agreed, we just alternated between him sharing me with clients trying to get a leg up at work, or him insisting on picking up hot young college girls. Eventually I felt like he was only interested in me because I was always up for the kinky stuff."

"Sam," Meg speaks up with real concern in her eyes for her sister, "What did he make you do?"

"No, it's not like that I'm into the kinky stuff too." Meg who was never especially into anything too out there gave her a quizzical look. Sam finally smiled a little, "Don't knock it until you've tried it sis." But then she frowned again, "but I only felt like I was there as a tool for Josh getting off, he really only lusts after the young drunk college girls we'd pick up at bars. He would always turn his nose up at my suggestions," Sam quickly broke eye contact and looked down again. It was now I realized that I was still exposed and my cock was still hard and bobbing along to Sam's intimate confessions.