Actually, it's a nightmare. I've been desperate for a shag, but watching him suffer was just too much fun.

8 seconds sound clip from the Trainspotting (1996) movie soundboard.

You can hear this line at 00:21:01 in the Blu-ray version of the movie.

Quote context

[...]

- Nightmare right. She told me she didn't want our relationship to start out on a physical basis as that is how it principally is going to be defined from then on.

- Where did she come up with that?

- She read it in Cosmopolitan.

- Six weeks and no sex?

- I've got balls like fucking watermelons, I'm telling you.

- I read it in Cosmopolitan.

- It's an interesting theory.

- Actually, it's a nightmare. I've been desperate for a shag, but watching him suffer was just too much fun.

- You should try it with Tommy.

- What, and deny myself the only pleasure I get from him?

- Did I tell you about my birthday?

- No, what happened?

- He forgot. Useless motherfucker.

- Useless motherfucker, that's what she called me.

[...]