This is totally news to me. I have never seen Sinful at Ulta before, have you? I don't see any other Sinful polishes on the Ulta site right now though, so I'm not sure if this is a one-off set (sort of like the #Pride set at Drugstore.com), or if there's more to come. I really hope that Ulta starts carrying the entire Sinful range online and in-store though, because hello sales, coupons, and points!
If you have spotted any Sinful polishes in-store at your local Ulta lately, I would absolutely love to hear from you!