my secret open relationship

hey guys so yeah ive been keeping a huge secret from everyone at school i teach in an open rel right now and i love it its kinda wild cuz like i can be with anyone but usually it ends up being just my current partner but every once in a while i get to experiment with others which is totally awesome last week we went all out and had some hardcore threesomes in the office after school ended the way he fucks me against the wall or when another guy joins in to ride me like there's no tomorrow yeah it’s intense stuff sometimes but it works for us im proud of being open and honest with my partner about what i need sexually its not easy keeping it from everyone else though so anyone out there ever been in an open rel at work? am i the only one or is this pretty common? also how do you deal with the guilt/anxiety of hiding something like this? any tips would be great thanks.