" She's going to go through a wall?" Nancy asked, confused."Oh, no, no, no," he laughed, "it's still metaphorical about the 'wall'; what I mean is tha... she'll be in a situation where she's forced to overcome several obstacles, and she can't stop until she passes the test." I still don't get it" Well," he replied, "imagine trying to do your figure skating routine through an obstacle course." That would be impossible!" Nancy cried, shocked!"The obstacles won't be on the ice, though;" he. The first thing I was met with was the undeniable moaning sound of my sister, satisfying every ounce of anticipation I had! The room was dimly lit, with just a small night lamp on to provide brightness. I tiptoed my way past the small bathroom and into the room, with my heart racing with each step. Lily was leaning against the bedframe, her hand firmly on Chris head as she forced him to eat her out. She saw me immediately, but I quickly raised my index finger to my mouth, telling her to be. Smoothing coconut oil into my skin, I looked at my shiny naked reflection, proud at how I looked and feeling very sexy that my body would arouse a young stud like Alan.I began to select my black fuck me outfit for Alan's pleasure.I placed on the bed a soft pvc looking garter belt with six straps. I pulled my matching quarter cup pvc bra with a pair of black sheer seamed stockings to complete my lingerie. I chose not to wear any panties or a thong as he’d fucked my ass earlier and seemed. We were just madly in love.I introduced her to porn soon after we were married and I gradually got her to do more and more kinky things. She admitted to me that she had bi-sexual feelings and loved watching the girls in the movies and loved to look at their pussies. This was just too cool!After a year of trying to find her a girlfriend without success I was at my wits end. One night while we were in bed watching porn I just suggested out of the blue that we needed to do something kinky! I said.