Erin goes first

From Torg Adventure

You feel hands on your trunks and they get pulled down to your thighs. You think the cool water might kill your erection, but it doesn't have time, as a hand grabs your cock and strokes up and down it.

Erin says, "I'm going first. I've been waiting the longest."

Molly says, "Well, he is your brother, so I guess you get dibs."