As I lean back against the wall, watching you instruct and demonstrate for your class… I spread my legs open wide, causing my shorts to ride up and ...how my outer pussy lips. Feeling a slight chill of cool air circulating in the room against my lips, l look down and see them showing themselves off to you… instantly feeling my nipples harden against the fabric of my sports bra and wife beater, glancing at my perky, excited nipples… raising my eyes up, looking in your direction, smiling… I sit. No one had ever kissed her tits before and it felt wonderful, especially when the hands lifted her up, pressing her sensitive flesh against his nipping lips as he pulled her blouse off her shoulders.She felt the snap of her tight jeans being undone and she sighed at the sudden freedom as the pressure on her stomach was relieved. Her sigh grew as his hand caressed her belly. As she felt her jeans being pulled down over her hips she vaguely thought she ought to protest, but she couldn't. Laughter, giggles and soft whispers of foreplay were all around me. I began stroking my dick when I heard a long, drawn out moan and I imagined a cock entering one of the girls. Not knowing which girl was being taken slowly and quietly only made it more erotic. It’s quiet in woods at night and tents do nothing to stop sounds. Our tents were setup within a few feet of each other and I could hear every soft sound as two girls began taking cock between their legs and one man continuing to receive. David would have to be naked to increase the effect. They would sit on a chair in turn and he would have to lie across their lap. Each would spank him. Lesley would then use the belt and Susan the cane. David would stay across Susan’s lap for the strap, but stand schoolboy like grabbing a chair for the cane. They decided they were satisfied with that structure. Lesley said, “Oh and don’t worry about making too much noise David. We are in the inner office. Once I lock the outer office door no.