for "the substance" i had the idea of mutual spy enemies mctz that mistakingly took an aphrosidiac that makes them go into a sort of heat-rut like in omegaverse but without it being like that, and so they mate like horny bunnies (domtophwx with crying mess brat hj). then for size matters, i thought about crimeboss hwx with his boytoy hj, maybe he's part of his criminal group and everyone assumes hj tops bc of that but hwx knows better, he's able to bend hj over super fast over his lap to spank him ;)