I got through all my first kisses!

There is:

Sam and Steve, for oneangrykate.
Ollie and Hal for sister_wolf.
Bucky and Toro for likeadeuce.
Winter Soldier!Bucky and Sam for jubilancy.
Steve and Winter Soldier!Bucky for harmonyangel.
Tiny!Hal and Tiny!Carol for littledarkvoice.
Jim Hammond and Namor for (who else!) mizzmarvel.

And last but not least, the one that got its own post, Aquaman and Namor for mississippienne and by popular demand.