Roommate catches me masturbating

Finally I have the house all to myself. Tired of masturbating only in my bedroom I am looking forward to doing it somewhere different. Dressed only in my t-shirt, panties, and white socks I sit down on the sofa. Sliding my panties to the side I slide the big dildo into my pussy. It is feeling so good and I am so caught up in it that I don't notice my roommate has arrived back home. At first I am so embarrassed but I don't stop. I continue masturbating in front of her, now I'm even more turned on. I love that she is watching me fuck myself with a dildo. I cum good and hard for her.