Was making a translation (not bl related) and came upon this definition for "trade". I did not know that. But i do know a lot of examples. And i bet you guys do too. I've found the name for them, in the middle of my job... Did everyone else knew about
LF Mono Source: "Yuzuki-senpai" "You're getting so hard", 1boy, 1girl, between legs, crotch grab, frills, from above, head out of frame, lying, nightgown, on bed, penis grab, pink filter, pink tint