Cherry could tells you to stroke it to her in those leggings using all kinds of dirty talk.
"You'd rather be jerking off to me than your girlfriend"
"I'm better than her in every way."
"You can only cum for me and no one else"
"When you finally bust you'll belong to me".
at the end you get a close up of her face as she holds and points to her tongue as a target for your cum.