Bernice wants to give free reign to her passion without any danger that it will progress beyond kissing. She chooses a semi-public venue like behind the bushes in the park where getting caught kissing is embarrassing, but she also will not be tempted to have sex.
It is ironic that of all the characters in the Luanniverse it’s Bernice that turns out to be the one most troubled by lust. She tries to use her mind to place limits on fulfilling her sexual needs but her eyes keep messing things up. Watch out, Nil! You’re walking into a raging fire!
“Toot” fits better.