I Love Rock & Soul (слэш)

“What’s the prognosis?” Bucky asks, his shoulder pressed lightly against Steve’s. The touch is grounding, a stark difference from the couple times they tried to separate before Wanda got there and Steve had ended up lightheaded and halfway to a panic attack. 
 
Wanda stands up a little straighter, brushing her hands against the multiple layers of fabric that comprise her skirt. “Congratulations gentlemen, you managed to bind your souls.” 
 
Or sometimes you touch a rock and end up soul bound to your best friend who you've been pining over for years.