Oh, come now. We're both summer bachelors. Don't let's be naive.
7 seconds sound clip from the The Seven Year Itch (1952) movie soundboard.
You can hear this line at 00:32:37 in the Blu-ray version of the movie.
Quote context
[...]
- All right. Pick 'em up tomorrow afternoon then.
- I couldn't care less. Come tomorrow evening. Come anytime. Just not now.
- Oh, come now. We're both summer bachelors. Don't let's be naive.
- Why, he's got four kids. Something happens to people in this town in the summer. It's disgraceful.
[...]