Discovering mygirlfriend's hidden pervy side had been surprise but it had actually beenmy shyness that had prevented us from advancing our relationshi... to thebedroom. It was hardly an issue of attraction - my girlfriend was a'catch' as my parents' generation would say. She had a slim figure and anice chest topped with brown hair cut a bit above her shoulders, wellsuited for cosplaying a number of prominent anime heroines though we weretaking a break from cosplaying this year. I actually worried. Don't let anyone tell you that vanity isn't part of the bodybuilding culture. We lift and get big because we enjoy it. But, we lift and get big because it makes us look better and we like to look at ourselves. A couple of days later, after working on the Iron Shop, I grabbed one of the old floor mirrors out of the dumpster and trucked it back home. Results are a great motivator, and I positioned the mirror against the wall in the garage to inspire grandma.That was her "off" night, giving her. I pulled my hard six and a half inch Cock from my pants,and she grabbed it with her right hand from between her legs and rubbed it all over her wet clit and lips. She was making herself cum by rubbing my swollen dick all over the outside of her pussy. This was getting me so hott,I jammed my Cock inside of her and she let out the loudest moan of the night so far,and I felt her cum drip down my balls. I put my hands around her hips,and pulled her tightly into me,and repeatedly smashed ourselves. "Oops sorry mum I forgot it was you lying here." Well I am pretty sure that my body does not feel like one of your young girlfriends." Can't say I noticed any difference and anyway you still look young yourself" he told her hoping to earn a few brownie points."Well I do my best," she told him "but time is starting to catch up with me now." Anyway I have arm ache from lying here with my arm under me so you can swap positions with me Mark."Mark got up and swapped around and ended up lying into.