"Well..." I started, choosing my words carefully. "I'm not sure about the 'virtual blowjob', but if you've seen full length porn videos, they usually progress from voyeurism, like we've been doing, to actual s*x acts with another person; a blowjob, p***y eating, fucking... that kind of thing." I stopped, wondering if my brother-in-law actually wanted Maryanne and me to film ourselves having s*x. Not that I hadn't thought about s*x with my sister... obviously, I had thought about quite it a lot! Hell, we'd been m**********g for each other with every video. Of course, I'm pretty sure Mark didn't know all of that. "Do you think that's what he means?" my sister asked me. We were in the office and I was standing next to her chair, reading the e-mail over her shoulder. We were both fully dress

