My sex scenes tend to be fairly short.
This is from one of my short stories.
And then they did it.
I decided to edit it back from the original which was a bit too extended.
And then they... you know... did it.
I always think when writing sex scenes that a lot of the allure is in what you don't describe and leave to the reader's imagination, so the edited version is, in its way, more graphic.

It depends on the tone of your narrative. The edited version gives a comical feel to it. So I would hope the rest of the story matches the comical feel.