Which style would be more erotic

So while writing some dialogue today and talking with the others, I couldn't help but wonder what people would find more erotic in terms of relations with Tsunade in the love path.

Each choice comes with it's own style and connotations. E.g if people choose the mother figure route, Tsunade will refer to the player as her son,  and he will refer to her as "mother". This will apply to the sexual scenes and so forth.