Plus the last time I did that, it was so much fun! The rest of my outfit included a little red mini skirt, white lacey blouse, and a pair of really s...lky sheer-to-waste Nude pantyhose to go along with my nude high heels.I had propped the door open and was waiting for Billy on the couch with my legs crossed and miniskirt hiked up so you could almost see my thigh (love those sheer to waist nylons!). He walked in and immediately dropped his pants which to my pleasant surprise, he was already. The effect this possibility was having on me was straining against my shorts. Would my cotton shorts hold out as my hard on pushed it's way through the cotton. I was half expecting to hear a tearing sound as my cock won that battle. At least the cushion on my lap was camouflaging my erection.Mom picked up the panties, thought for a moment and pointed towards her room. “I’ll let you know” I'm sure the disappointment was clear on my face as I realised my fantasy was going To have to remain a. I found the sight and feeling of my rod wrapped in latex a turn on and I grabbed it and commenced to slowly masturbate. Valerie smiled and kissed me again as I heard the distinct sound of a zipper being drawn down. There was some wiggling of her part before her short skirt slid down he magnificent legs.Once again my mouth hung open at the sight before me. She was not wearing pantyhose as I had thought. I saw a black silk and lace garter belt holding up lace top nylons. Valerie then surprised me. It was a long drive and my sister and I ached to get into the pool. She ducked into the bathroom first to change, while I waited all I could think about was getting some needed "relief". Sis came out of the bathroom with a new bikini on that she bought before we left home. It was the kind that had the ties on each side. I'm not sure if it was me being horny or what but she just looked good enough to eat. I couldn't help but to give her a quick look up and down. You know how teen girls are.