As time went on, J became bolder and frequently suggested opportunities for quickies, including at work. Her role included marketing and events and she had a large storeroom in a building on the site that typically only her and delivery / collection drivers ever went in. The main doorway was within site of the main office, but it had a second door on the opposite side. We were in the office one day and she was looking as hot as ever in an above the knee wrap dress and strappy sandals. It was a warm summers day and my private phone showed a message. Meet me in the storeroom in 10 mins, back door. I left the office to go and check some products for dispatch and then made my way towards my car via the storeroom. As soon as I walked in we started kissing and I pulled the top of her dress apart to get access to her lovely breasts. I caressed and teased them with my fingers before taking a nipple in my mouth and sucking as she leant against a stack of chairs. She loved having her nipples sucked and my hand moved up her bare thigh to start rubbing her panties. She had on beautiful navy lacy lingerie and her panties were soon very wet to the touch. She undid my trousers and started wanking my cock before I went down, pushed her back onto a table and pulled her panties to one side, giving me access to lick her sweet wet pussy. She gasped and moaned as I licked her and encouraged me to push my tongue inside her and get her to cum before I fucked her. In no time she built up to an orgasm and I kept licking as she climaxed, her whole body shaking as she bucked and moaned. I had been stroking my cock and it was rock hard and read to enter her heavenly pussy, so I stood and as she held her panties aside I rubbed my knob over her wet clit, then slid it deep inside her in one thrust, she moaned loudly as my cock filled her tight hole. She wrapped her legs around me as I fucked her and played with her nipples, her dress now wide open and her bra pulled down. She loved being called a dirty slut and I talked dirty as I thrust deep in her pussy. She then said "fuck me from behind" and bent over the table and lifted her dress. I entered her again and built up the tempo until I reached the point of no return and ejaculated deep inside her. I withdrew and she took me in her mouth as always, licking my cock clean and savouring the mixture of our juices. We tidied up and I l left via the back door and left the office. She went back to her office and later text me to say she had her door closed and was licking my cum off her fingers and that her new navy panties were a sticky mess!