If you want it done, do it first
[QUOTE=Weyfarere]
I think the girl does it if she knows you and is into you when you have your sessions. Maybe she not do it in her first room with you. I know I took a couple of sessions before Antonia did it with me. I cannot remember exactly how it was offered but I must have indicated my liking for it as I was relaxed with her and she must have been licking my balls at the time and she said that she would do it but it would cost 25 euro extra.
[/QUOTE]
Go down on the girl before she goes down on you in the room...while your dining at the Y head farther south. If she doesn't like the attention down there, then its doubtful she'll want to do so to you in return. If on the other hand, she likes the licking she might do so for you when its her turn.