Cheating Boyfriend Gets Caught

I was at a house party dressed up in my latex dress and a guy was chatting me up he said I look really nice I could tell I was turning him on. He told me he liked my dress and said do you want to come outside and talk I said yes so we went to the back garden and no one was in it then he started kissing me then he took his dick out and I got down and gave him head I sucked his dick so hard and he cum in my mouth and I swallowed it he was zipping his pants up and then his girlfriend turned up and asked him what he was doing he started to panic and said Im sorry she said you are with another girl I said actually im a crossdresser she was shocked and ran off and he turned to me and said thanks for that blowjob i really needed that and then he ran after his girlfriend.