Should my kids celebrate my bf for fathers day?

I need others opinions…

My boys want to do something special for my boyfriend for fathers day. We have been together for almost two years. He is so good with the boys, they have a great bond. He has stepped up and been more of a father (a lot more) than their bio dad (he isnt in the picture) they adore him. Part of me is like its to soon, he may freak out lol. The other part of me is like awww thats sweet.

Yes!!! Let them show how much they love him as a stepfather