This is how things should go.

Okay being stuffed full of cock is somewhat less overwhelming as a ghost but he still greyed out for a minute, there.

(What is the purpose of condoms, if not preventing pregnancy? He can't think of any, even though he feels like there ought to be one. But also, he had the thought "well, men can't get pregnant," which... is... false... and he has no idea why he thought it. Yes, they can, and Peter does not want to get pregnant, and that is the reason to use a condom, except he is a ghost, and ghosts can't get pregnant, he's pretty sure, so, uh.)

(Yeah, he's got nothing. He still doesn't know where his intuitions come from and why they conflict with the real world so much.)

Peter looks a bit too distracted from Doyoon's cock and Doyoon is taking this personally and needs to make sure this stops being the case.

Yeah okay he can get that yep yep yep—

Good.

(Someone does, in fact, walk in on them. He had heard the noises from downstairs and decided to sneak up to check and now he's watching, mesmerized.)

It takes Peter a minute to notice but when he does he pulls away from Doyoon a bit to murmur, "Doyoon, let's give him a show."

"Hmm? Oh. Yeah."

So he and Peter can work together on that show. What if Peter turns around so that his back is to Doyoon and they open their legs so that their audience can see Peter bouncing on Doyoon's cock, can see Peter's own cock bobbing up and down while getting his asshole plowed...

...oh.

"Fuck. Ah, M-Manuel, I w-want to see you, fuck, I want to see you jerk off to us—"

"O-okay." He spins out of his clothes and he's full mast already and definitely willing to jerk off to that. It's so hot that he can see Doyoon's cock inside Peter like that, he did not know he had that kink.

With an audience like that it doesn't take Peter particularly long to come.

Nor Doyoon.

The audience follows soon after.

And it turns out that ghosts can still get physically tired and worn out from being dicked down so Peter's just gonna stay here a minute.

"...can I join you guys?"

"Sure. The tub is free." He can sufficiently disentangle himself from Doyoon and just sit next to him.

Doyoon wraps an arm around Peter and nuzzles him.

He's so cute.

And Manuel gingerly gets in the water.

"Did you die?" he asks Peter.

Peter supposes that seeing a dick through someone's transparent stomach is sufficiently weird to clue someone in even whent hey would otherwise have thought he'd just changed his hair. "No, it's temporary."

"Oh. I didn't know you could be a ghost temporarily."

"Me neither! I found out today."

"Did it hurt?"