“Pillion” follows Colin (Melling), a weedy wallflower letting life pass him by. That is until Ray (Skarsgård), the impossibly handsome leader of a motorbike club, takes him on as his submissive. Ray uproots Colin from his dreary suburban life, introducing him to a community of kinky, queer bikers and taking all sorts of virginities along the way. But as Colin steps deeper into ...