No Stupid Questions

Either 'I can hear you fuck, keep it down.' or 'JFYI the walls are thin.'

Play hentai on speakers 😉

Just ask him to keep it down? "Dude I'm pumped for you and all, but I'd really appreciate it if you guys could kick it down a notch"

Tell them to play a show with very high volume in the background.

Make him buy you a great pair of noise canceling headphones. You can get awesome headphones for like sub $300. That's well worth it to him I'm sure. And you of course. Win/win here.

Tell him straight up it's affecting your sleep patterns and you need the things above to get past it.

Offer the girlfriend's friends as sacrifice and get yours at the same time.

Start coughing loudly and see if they're sharp enough to infer what that means (if they can hear you, you can hear them).

Well I'm inferring your dad's not a young lad anymore, twice a day is quite impressive even more at 6 o'clock! I think they're a bit in the honeymoon phase, it'll mellow eventually*.

But to answer your question I have two options: -Tell him to lower the volume or pick some time you're not home IF it's your home, as in your dad has come to live with you or you are roommates, or you are too young to live by your own. -But IF it's his home and you are old enough then get your own flat/room or some good headphones and let them enjoy life.

*Or not, I don't know your dad or his girlfriend. Wish them the best tho.

Have loud sex with a woman his age to turn the tables.

When you know they're in there, but it's not 11pm or 6am, call up someone on the phone, or cough, or hum to yourself. Just make mid level noises. The point is to get them to realize that if they can hear you, then you can hear them.

The loud part of the 1812 Overture as soon as he's finishing.

Put some Dio on loud speakers and place them next to the shared wall

Don't be subtle. Be direct and frank. "Dad, I don't want to hear you having sex with your new girlfriend and I shouldn't have to put up with it twice a day. Either be quiet or do it when I'm not home." Throw in some imitations of him or her. He should be mortified enough to behave. Better yet, tell it to both of them face to face. That way there can be no confusion between all parties.

Stay respectfully, forget subtly. Say it like it is.

Depends on your age and whose house it is.

Clap and say bravo at the end of it.

This will send a message.

I've been in a similar situation. As another user already said, you should be direct about it. Pick a good time (when they are not doing it) and simply explain that they are loud and ask them to be more quiet.

If you still want to be subtle, maybe try knocking/hitting the wall between your rooms, this will probably be noticed if it's night, and they could realise that they're bothering you.

Play some Gilbert ~~Godfrey~~ Gottfried comedy albums while they are going at it. His voice should kill the mood.

If you look at this situation from an older mindset, i am above thirty, you would definitely tell them in a very direct and short conversation. Maybe even be playful about making them feel guilty, that’s what most people with more life experience would do.

Do you know if your dad has been snipped? If not, you had better move out if you are able to. Because otherwise you will end up being free child care in about a year ....

Just tell him respectfully, sometime.

As a parent, myself:

• I totally don't mind if my kids tell me they can hear me. I appreciate knowing our communication lines are open.
• I am still going to continue having (probably still loud) sex in the house. Unless my kids fully paying a roommate's share of the costs to run the home, they're still kids, not roommates.
• I'll probably buy the kid some nice noise suppressing audio headset as a shopping surprise, sometime soon.