She was the odd one out in the family - both Mona and Lara were petite with full rounded tits whilst Leanne was tall and flat."So fucking full" she co...mmented as she wiggled on my impaling cock.I drew her down a little to bring my lips and tongue into contact with her nipples. Flicking their hardness with the tip of my tongue before taking them between my teeth to nip on them. Her hips were grinding against mine, keeping my cock fully embedded whilst rubbing her clitty against the base of my. Lori had popped out to buy some much-needed groceries and I decided that, if questioned, I would pretend that I had put her underwear into the new cabinet.Despite mother behaving in a normal motherly way, I still couldn't dispel the memory from my own mind. I found myself averting my eyes in her presence, unwilling to look her in the face. I found my eyes drawn to her not inconsiderable breasts, which seemed to be putting a startling amount of pressure on the buttons of her blouse, unlike. Minutes passed so quickly and before long, I heard a knock at my door. “It’s time to get up princess,” I heard my stepdad call. “I’m coming,” I replied instantly as I swivelled my legs out of bed. I slowly guided my feet into my slippers and reached for my robe as I walked to the door. I could hear his breath from behind it as I slowly twisted the knob. “There’s the birthday girl,” he laughed as I opened the door. Even at eighteen, he still treated me like I was a kid. Then again I understood. With that I got up to leave, she gave me a hug and said thanks, and what was said her, stays here with a laugh. I went to my room.Once inside, I stripped off all my clothes, placed a towel on the chair in front of the laptop, got it turned on and to my porn site. I grabbed a beer from the fridge, and sat down with my new toy. Surfing the site I found some good vintage video, and began to play it, sipping on the beer. Wasn't too long before I had a erection with precum glistening the slit, I was.