Got Caught With My Boyfriend's Hands On Me at Work

So I work at this coffee shop, and let’s just say things got a little steamy between me and my boyfriend during our lunch break. We were in the back room where no one could see us, but sometimes I forget that stuff can happen so fast. We had a moment there, let’s call it an impromptu quickie, or at least trying to. He managed to slip his hand up my shirt while we whispered sweet nothings and giggled like schoolkids. But then out of nowhere, one of the customers came back early for their refill, caught us red-handed if you will. My boyfriend quickly pretended he was just helping me with something behind the counter, but it was pretty obvious from our flushed cheeks and my half-zipped shirt that we were getting a little carried away. It's funny now when I think about it because no one ever expected to walk in on anything like that at a coffee shop.