What about this girl ?
She appered 3 times on PH (66, 68 and 71)- no sex, no BJ . Appered on czechcasting - no sex, no BJ.
And then in PH vol. 75, after only 10-15 minutes of this party, she gave a bj and then have sex (compare that with recent PH where we need to wait till part 4 or even 5...