What was the conversation between Harold Cottam and the Carpathia officer about?

Dan Kappes

Sep 26, 2018
Apple Valley, Minnesota, United States
When the Carpathia is first seen in the film, her wireless operator Harold Cottam is seen talking to an officer on the bridge in which they say this dialogue, which I've transcribed from the Blu-Ray's subtitles:

Cottom: They say they always grow up to look like their mothers.
Officer: The older one's keener, if you know what I mean.
Cottom: I know what you mean. Why don't you try giving them both a miss this trip?
Officer: And take the mother out?
Cottom: Yes, you might do worse by the sound of it. You're heating my blood, I think I'll turn in. Sweet dreams.
Officer: Good Night, Sparks.
The scene can be viewed at the beginning of this video; it takes place shortly before Cottam receives the Titanic's distress call.

Can someone please clarify to me what Cottam and the officer were talking about? It's something about young ladies, I think.