Real-life friends Sennott and Edebiri are harmonious in ways that relieve them of the need to land flat-out punchlines. Instead, they just sweat funny out of their pores.

Smart and very silly.

Even if the scattershot plotting doesn’t quite hold together, there’s a wayward energy to the picture and a barbed sense of mischief.

The film’s unrelentingly dry tone contributes to its playfully ridiculous feel — it is at once the thing and a send-up of the thing. Teen sex romps have a formula for a reason.