Did Pukes and Smell have some sort of relation before Shaun's arrival?
In some scenes you can see that Pukes is sitting next to Smell and is chilling. In the scene where Lol is shaving off Shaun's hair you can see that Pukes is caressing Smell's legs and they're smiling to each other.
And at the party when Smell and Shaun came in again after snogging outside Pukey looked like surprised and seemed to think WTF.
So did they have some sort of relationship, maybe friends with benefits before Shaun and Smell got together?