computer show me this guy's valve pls

Gimme Suggestions!

Starscream and his trine overloading on your back to make a claim and watch as you shift your muscles, their transfluid running down your torso. That may cause Skywarp to overload again on the spot.

Hi bestie! So your thing with the backs makes me think of the rainmakers and them leaving permanent marks through tattoos. Like, they leave an indent of their ability at a restrained set and the irritated skin can be sketched out then tattood where it generally is. So every time they can see your back, they also see where their mark was left.

maybe star can't carve his name into your back, but with the right pressure, the skin will raise a bit, and temporarily, his name will be there for all to see

Teasing starscream by wearing tops without backs or ones that just generally expose most of your back. Eventually when he's got you close, perhaps cuddling or getting frisky, you can feel him behind you tracing shapes into the skin of your back with a claw. Tracing his name on the exposed skin maybe <33333

Humans being obsessed with seeker wings: Love it. Fantastic. Can create high tension situations and is highly intimate.