When I or a friend are traveling and not together due to the travel, we've had "video sex" just to relieve the horniness (and maybe prevent transgressions. I love watching my guy masturbate and squirt his cum right at the cam, and I love putting on a masturbation show - either with my fingers or a cucumber or a sausage. Then I lick my juices off whatever has been inside me and I eat it. (A few of my friends and I play extensively with food and semen as part of a meal).
I've secretly recorded the sessions a few times - for my own pleasure - and usually delete them when he gets home.