Lol totally about the post sex position but I think the director want to give the message that there was no love between them just a sexual tension to release thats why the pose it is so akward. Also, they didnt use the bed because Nino was packing so there were things on his bed so with the heat of the moment they did it on the floor lol
About the leg, i think that is not Nino's leg maybe a lamp in his apartment that got cover when they tried to cover themselves lol
According to Cosmopolita that position is called the Gymnastic lol