What I love is when they declare on their profile that they do not do it, or when they do not mention it one way or the other.
When it comes to the high point of the whole meeting, really really randy, both of us going at it hard, after much snogging and licking and sucking, they capitulate They do not want to stop and interrupt the ecstasy and carry on regardless, usually without even mentioning it, often making appreciative animalistic noises.
Whoopee.