Billionaire's Secret Baby by Cassandra Bloom

Had the privilege of reading and ARC copy. Great short story. Gina went out of town on business and hid her secret from her boss. Gile was Gina's boss and has seduced her for years. He misses her desperately while she is out of town, but she comes back with all of these rules; she has to work from home, she won't be coming into the office and she can't see him. Gile figures out a way that she has to come in and while she is there they fall back into the same routine, but will he find out Gina's secret?