In short, don't rub it under the other person's nose if you're having sex with someone else. Rule Number 5 is "my house, my rules." It's nice when your f*ck buddy invites you over for the night -- but you shouldn't expect it.If you assume you're staying and they ask you to leave things can turn sour very quickly.

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If you don't set proper boundaries it can actually be more volatile and unpredictable than a proper relationship (and this is coming from a fiery Italian).

I've therefore decided to share my experiences in the hope that it will help you to stay happy, healthy and sexually satisfied with the casual partner of your choice.

But it's more than just good sex: a successful sex buddy relationship requires constant sexual tension and passion.

You need to make my knees feel weak and orgasms are 100% mandatory.

According to Lifehacker reader Polly, a 'friends-with-benefits' arrangement leads to more fun, less heartache and better sex. Some people prefer the phrase 'f*ck buddy' while others go with 'friends-with-benefits'.

But it can also be an unpredictable minefield that needs to be navigated with extreme caution. Whatever you call it, it amounts to the same thing -- a trusted acquaintance with whom you engage in no-strings-attached sex.

I've also included the eight main rules that I've learnt along the way.

But first, let me give you some background information so you know where I'm coming from.

We both know what I'm really asking for but it takes the pressure off and makes it sound more casual.