They do not do it that night. They do it the night after, one at a time, as the rule says, and both of them say yes first.

Corvina is first because she is older and because she asked to be first, which is the least dignified thing she has done in nine years.

CorvinaIf this does not work I am going to have made a very considerable fool of myself in front of a girl of nineteen.

MalfoidYou are going to have done it in front of two women who are both going to remember it.