After about 45 mins of work my mom insisted she go to a late night dinner down the street and pick us up dinner. I didn't want to go so I stayed with ...s. Diani. The office was now empty and very quite until I heard faint moaning coming from ms dianis computer as the nosey teen I was I decided to go see what she was up to as I approached her desk she clicked her mouse pad about a hundred times then quickly shut off the monitor... With an idea in my mind I asked " what are you watching" "oh. Despite our size difference, she pushed me roughly to the bed and climbed on top of me. Her wet cunt was glistening moisture as she took my hard rod in one hand and started to rub it up and down on the wet slit between her legs. I reached up and placed the flats of my hands in front of her nipples so every time she moved up and forwards the tips of the points ran up and down my palms, causing her to breathe deep and her orgasm to build. She ran the purple head of my glans against her hardening. It’s all prepared—just waiting on the guy to arrive from Mexico.”“Is he traveling through Mexico?”“Yes.”What else was there to say? The visiting professor wasn’t in their discipline, so they had never discussed him before. Why the sudden interest?“I’ve never seen the apartment. Is it nice or just a glorified dorm room?”“It’s okay. Nothing fancy. A small living area with television and desk, a kitchenette with breakfast table, and a bedroom and attached bathroom.”“Oh, okay. I’d like to see it. This was my first experience of taking someone across my knee – Joan and I had often joked about it, but we’d never gone as far as doing it. Philippa saw my hesitation and told Sharon to lay herself across my knee. She moved carefully (knickers at half mast and avoid swinging the weight too much) to lie across my lap – after a bit of co-ordinated movement between us, she was positioned appropriately – my only element of discomfort was that my cock was straining against my trousers – something I.