There is still one way this can go wrong. If you usually Snapchat your partner videos of your lunch or snaps of your plant (but why would you do that?), don't throw a curveball and send a sexier shot without warning. They might open it in plain view of their friend, thinking it'll be the tenth animal pic of the day, only to find . . . something completely different. I tend to favor quick, pithy captions, but I leave it up to you as to the tenor of your text. This is definitely the safest option of them all.
As long as your partner isn't visiting his family or on a business retreat or something, this should be OK. But remember that previews of incoming photos usually show up on smartphone screens, as well as the first couple of lines of text. Proceed with caution here, unless you're sure the person on the other side of the screen is alone.
3. What's App
International sexting: Go. Even if you don't speak the same language, you can still sext. Win-win?
This is a lot like Snapchat, only much newer, so most people don't have it. One major plus, though: You can un-send a message. When it comes to sexting, this could prove incredibly handy.
I feel as though this is not the place for pictorial sexts, but gchat could be a fun way to hint at what's on your mind for later. Careful, though: Email is usually reserved for more professional endeavors, and it's way too easy to send to the wrong person.
This is not the best platform for sexting. But if you must, keep your message short and sweet and to the point. Like this. Just be sure to not post your sext as your status update. Stranger things have happened.
I'm going to nip this one right in the bud. Don't DM sexts. It's just not the place for this kind of thing. I know there are people out there who would disagree with me, and to each his own, but just . . . don't do it.
This is also a no-go. Dropbox is a great place for uploading high-res images and sharing photos with your business partners, but when it comes to sexy photos, this is a no-fly zone. Too sterile. Not immediate enough. And sexts really don't need to be high-res.
9. Photo Vault
This is not so much a sext method as much as a place to lock any incoming photos you receive. To keep your most private photos extra private, download this app and save all of your racy racy photos here.