When couples have been together in a relationship for so long, there's a tendency for them to get so comfortable with each other that they'd do some totally weird stuff together without seeing it as a big deal.

Here are 10 gross things that all couples do in private but will never admit to in public.

Read on and be sure to share because come on, you do it too don't you?

1. Checking out weirdly-placed rashes: No matter where it is located we really don't mind checking it out and giving live updates about its status to our better halves.

2. Having conversations from the toilet seat: Honestly sitting on the pot does make us remember a whole lot of important things that are best discussed right away.

3. Pulling out facial hair: Nose hair, ear hair, chin hair... we've pulled it all out without a trace of embarrassment, as long as we are all alone.

4. Checking for earwax: You've got to admit, it's a common problem and you don't always have the luxury of visiting a doctor. Get your partner to check it out for you and you are sorted.

5. Popping zits: That big zit on their face is just too inviting to ignore. And popping it gives us an odd sense of pleasure, don't ask why.

6. Sharing a toothbrush: If you can kiss him, you can share his toothbrush. Nothing remotely gross about this.

7. Sex farts: Although it's not a regular thing you've got to admit that it happens. And more often than not you let it go and continue the act.

8. Nakedness: There's nothing quite like the feeling you get taking off our clothes (all of them) the moment you walk in the door. Freedom, at last! Nothing sexual about it.

9. Odd sniffs: Okay so this is not as gross at it might sound but occasional armpit or feet sniffing is just one of those things that only married couples like to do. And understand!

10. Singing: There is nothing gross about singing but when you start making up the lyrics or adding dirty words to them and singing along in your own tune, some people might find that odd. The gross part is when you subconsciously sing it at work and your boss walks in.