...Wha? Come, you say...

Come now, get inside me.

Uh... no, I'm fine.

Uh, well, back then it might've been okay since I was still a kid, but now I've grown up, so...

You are still a child.

And even if you're concerned over being embarrassed, there's nobody around other than me, and I don't feel anything particular about this matter.

As such it would be irrational for you to insist and bear the risk of hypothermia.