I've been wet bunning a lot lately, and I will continue to do so for the remainder of the summer...and probably after that too
It's just so convenient.
I'll wash (or co-wash) in the shower, gently detangle with a wide tooth comb, squeeze out excess water, apply a leave-in (usually regular conditioner), seal with an oil (or butter) and twist it into a bun. I secure with a Goody Spin Pin. I used to use Good-Day Hair Pins, but after discovering the spin pins, I haven't gone back.
To keep my hair smooth at the top, most times I'll add some Eco Styler Gel (the brown) which has a softer, level 7 hold. When creating the wet bun, I don't use a brush; I smooth with my hands.