Boss falls in Love with Chief of Staff

[tFfaS]

I'm looking for a story where a boss falls in love with his chief of staff while recovering from an accident. It has a a lot of exciting interludes like a neighbor enlisted to help in care is young, pretty, likes to get naked to help him shower, and enjoys giving blowjobs. (Her name is Rainbow, rain for short, probably a play on rainbow parties) The ex wife who brings her lesbian lover to show her what an amazing dick her ex has. It ends when he knows he is in love with her so he has to let her go and get her a better job so he can actually date her. Any ideas what the story is?