The two mid-coitus lovebirds will likely object, at which point those golfing are obliged to inform them: "Oh, don't mind us, we're just playing through."
Done more for comedic effect than any sort of malice. Negative effects to friendship can be mended with naked apology.
Bobby's friend: Dude, what are you doing? Put your dick away.
Bobby: No can do. They're holding up play.
Bobby's friend: Christ, I'll go grab the putter.
2. Dee: What the FUCK?! Why are you guys here? And why are you naked? Get out!
Players: (In British Accent, audible whisper) Oh my. It seems the pitch is slightly elevated here, but he's judged it beautifully... magnificent shot.
Dee: Martin, say something!
Martin: It's fine, they're just playing through. And look at that stroke. So elegant (gives Bobby high-five).
Or, to make a quick stop by a friend's abode to procure said chemicals.
"Oh no, we're just playing through. Are Tina or Charlie here at the moment?"
"No, but Molly is in the back. You want to meet her?"
"Sure! Bring her out."
2) "Mind if we play through?"