Need ideas for Birdflash OTP 08 (Patreon)

The prompt for the 8th OTP picture is "skype sex" but it's pretty lame imo, and would probably just end up as 2 solo pics, and that's boring. So I'm taking suggestions for a new 8th picture prompt.

The list of already existing prompts, and my completed pictures are here: http://bludwingart.tumblr.com/30daysotp 

Please don't suggest something that is already on the list! And keep it to a prompt, not a specific scenario.

<3 Blud