Has anyone seen... I think it's Pusher when that guy Kim thingy picks up Mads Mikelson and he asks him what he was up to last night and Mads tells him he shagged this girl the night before... and then he goes into all this very graphic detail, culminating in how this girl is into this particular thing - he says the name of this sexual practice and I forget what it is, but on further questioning it turns out to be the name for a thing where she likes someone to come on her face and then clean it off by pissing on her. And the other guy is all "what?" and he's like "yeah, you piss the sperm off, splash it all over her, a bit here and then there and just kinda wash it all off eventually" - although he says it in somewhat more gruesome detail - and the main guy says "who the fuck was this girl?" and MM says "oh that was your mum".
When I saw that I - and everyone I was watching it with - immediately thought of Ollie of course - or, more specifically, Ollie's mum;.